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Finding the Fourth Proportional to 378,246.68, 567,499.62 and 129,103.64

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Solution

The fourth proportional to 378,246.68, 567,499.62 and 129,103.64 is: 193,699.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,246.68 : 567,499.62 = 129,103.64 : x
  2. Step 2: Convert to fraction form
    378,246.68/567,499.62 = 129,103.64/x
  3. Step 3: Cross multiply
    378,246.68x = 567,499.62 × 129,103.64
  4. Step 4: Simplify right side
    378,246.68x = 73,266,266,640.62
  5. Step 5: Solve for x
    x = 73,266,266,640.62/378,246.68
  6. Step 6: Final answer
    x = 193,699.70

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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.