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Finding the Fourth Proportional to 605,253.60, 907,880.40 and 162,021.60

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Solution

The fourth proportional to 605,253.60, 907,880.40 and 162,021.60 is: 243,032.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,253.60 : 907,880.40 = 162,021.60 : x
  2. Step 2: Convert to fraction form
    605,253.60/907,880.40 = 162,021.60/x
  3. Step 3: Cross multiply
    605,253.60x = 907,880.40 × 162,021.60
  4. Step 4: Simplify right side
    605,253.60x = 147,096,235,016.64
  5. Step 5: Solve for x
    x = 147,096,235,016.64/605,253.60
  6. Step 6: Final answer
    x = 243,032.40

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.