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Finding the Fourth Proportional to 193,140.40, 289,710.60 and 167,220.40

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Solution

The fourth proportional to 193,140.40, 289,710.60 and 167,220.40 is: 250,830.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,140.40 : 289,710.60 = 167,220.40 : x
  2. Step 2: Convert to fraction form
    193,140.40/289,710.60 = 167,220.40/x
  3. Step 3: Cross multiply
    193,140.40x = 289,710.60 × 167,220.40
  4. Step 4: Simplify right side
    193,140.40x = 48,445,522,416.24
  5. Step 5: Solve for x
    x = 48,445,522,416.24/193,140.40
  6. Step 6: Final answer
    x = 250,830.60

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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.