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Finding the Fourth Proportional to 418,008, 627,035.76 and 133,723.52

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Solution

The fourth proportional to 418,008, 627,035.76 and 133,723.52 is: 200,592.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,008 : 627,035.76 = 133,723.52 : x
  2. Step 2: Convert to fraction form
    418,008/627,035.76 = 133,723.52/x
  3. Step 3: Cross multiply
    418,008x = 627,035.76 × 133,723.52
  4. Step 4: Simplify right side
    418,008x = 83,849,428,993.08
  5. Step 5: Solve for x
    x = 83,849,428,993.08/418,008
  6. Step 6: Final answer
    x = 200,592.88

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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.