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Finding the Fourth Proportional to 316,397.29, 436,627.92 and 178,567.09

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Solution

The fourth proportional to 316,397.29, 436,627.92 and 178,567.09 is: 246,422.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,397.29 : 436,627.92 = 178,567.09 : x
  2. Step 2: Convert to fraction form
    316,397.29/436,627.92 = 178,567.09/x
  3. Step 3: Cross multiply
    316,397.29x = 436,627.92 × 178,567.09
  4. Step 4: Simplify right side
    316,397.29x = 77,967,377,087.15
  5. Step 5: Solve for x
    x = 77,967,377,087.15/316,397.29
  6. Step 6: Final answer
    x = 246,422.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.