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Finding the Fourth Proportional to 231,609.60, 347,155.20 and 119,246.40

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Solution

The fourth proportional to 231,609.60, 347,155.20 and 119,246.40 is: 178,736.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,609.60 : 347,155.20 = 119,246.40 : x
  2. Step 2: Convert to fraction form
    231,609.60/347,155.20 = 119,246.40/x
  3. Step 3: Cross multiply
    231,609.60x = 347,155.20 × 119,246.40
  4. Step 4: Simplify right side
    231,609.60x = 41,397,007,841.28
  5. Step 5: Solve for x
    x = 41,397,007,841.28/231,609.60
  6. Step 6: Final answer
    x = 178,736.15

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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.