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Finding the Fourth Proportional to 308,397.80, 425,354.14 and 265,450.38

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Solution

The fourth proportional to 308,397.80, 425,354.14 and 265,450.38 is: 366,119.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,397.80 : 425,354.14 = 265,450.38 : x
  2. Step 2: Convert to fraction form
    308,397.80/425,354.14 = 265,450.38/x
  3. Step 3: Cross multiply
    308,397.80x = 425,354.14 × 265,450.38
  4. Step 4: Simplify right side
    308,397.80x = 112,910,418,097.57
  5. Step 5: Solve for x
    x = 112,910,418,097.57/308,397.80
  6. Step 6: Final answer
    x = 366,119.40

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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.