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Finding the Fourth Proportional to 243,873.97, 365,927.58 and 86,176.69

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Solution

The fourth proportional to 243,873.97, 365,927.58 and 86,176.69 is: 129,306.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,873.97 : 365,927.58 = 86,176.69 : x
  2. Step 2: Convert to fraction form
    243,873.97/365,927.58 = 86,176.69/x
  3. Step 3: Cross multiply
    243,873.97x = 365,927.58 × 86,176.69
  4. Step 4: Simplify right side
    243,873.97x = 31,534,427,624.11
  5. Step 5: Solve for x
    x = 31,534,427,624.11/243,873.97
  6. Step 6: Final answer
    x = 129,306.25

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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.