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Finding the Fourth Proportional to 230,499, 318,088.62 and 129,900.60

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Solution

The fourth proportional to 230,499, 318,088.62 and 129,900.60 is: 179,262.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,499 : 318,088.62 = 129,900.60 : x
  2. Step 2: Convert to fraction form
    230,499/318,088.62 = 129,900.60/x
  3. Step 3: Cross multiply
    230,499x = 318,088.62 × 129,900.60
  4. Step 4: Simplify right side
    230,499x = 41,319,902,591.17
  5. Step 5: Solve for x
    x = 41,319,902,591.17/230,499
  6. Step 6: Final answer
    x = 179,262.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.