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Finding the Fourth Proportional to 378,459.12, 567,549.72 and 125,693.76

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Solution

The fourth proportional to 378,459.12, 567,549.72 and 125,693.76 is: 188,494.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,459.12 : 567,549.72 = 125,693.76 : x
  2. Step 2: Convert to fraction form
    378,459.12/567,549.72 = 125,693.76/x
  3. Step 3: Cross multiply
    378,459.12x = 567,549.72 × 125,693.76
  4. Step 4: Simplify right side
    378,459.12x = 71,337,458,293.75
  5. Step 5: Solve for x
    x = 71,337,458,293.75/378,459.12
  6. Step 6: Final answer
    x = 188,494.49

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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.