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Finding the Fourth Proportional to 230,978.12, 344,332.08 and 227,338.30

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Solution

The fourth proportional to 230,978.12, 344,332.08 and 227,338.30 is: 338,906.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,978.12 : 344,332.08 = 227,338.30 : x
  2. Step 2: Convert to fraction form
    230,978.12/344,332.08 = 227,338.30/x
  3. Step 3: Cross multiply
    230,978.12x = 344,332.08 × 227,338.30
  4. Step 4: Simplify right side
    230,978.12x = 78,279,869,702.66
  5. Step 5: Solve for x
    x = 78,279,869,702.66/230,978.12
  6. Step 6: Final answer
    x = 338,906.00

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1.5x scale

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.