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Finding the Fourth Proportional to 605,093.60, 907,640.40 and 161,861.60

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Solution

The fourth proportional to 605,093.60, 907,640.40 and 161,861.60 is: 242,792.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,093.60 : 907,640.40 = 161,861.60 : x
  2. Step 2: Convert to fraction form
    605,093.60/907,640.40 = 161,861.60/x
  3. Step 3: Cross multiply
    605,093.60x = 907,640.40 × 161,861.60
  4. Step 4: Simplify right side
    605,093.60x = 146,912,127,368.64
  5. Step 5: Solve for x
    x = 146,912,127,368.64/605,093.60
  6. Step 6: Final answer
    x = 242,792.40

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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.