Home / 317,622.69-474,149.30-272,154.43

Finding the Fourth Proportional to 317,622.69, 474,149.30 and 272,154.43

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Solution

The fourth proportional to 317,622.69, 474,149.30 and 272,154.43 is: 406,273.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,622.69 : 474,149.30 = 272,154.43 : x
  2. Step 2: Convert to fraction form
    317,622.69/474,149.30 = 272,154.43/x
  3. Step 3: Cross multiply
    317,622.69x = 474,149.30 × 272,154.43
  4. Step 4: Simplify right side
    317,622.69x = 129,041,832,476.40
  5. Step 5: Solve for x
    x = 129,041,832,476.40/317,622.69
  6. Step 6: Final answer
    x = 406,273.97

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.