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Finding the Fourth Proportional to 285,306.68, 393,610.92 and 183,316.88

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Solution

The fourth proportional to 285,306.68, 393,610.92 and 183,316.88 is: 252,905.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,306.68 : 393,610.92 = 183,316.88 : x
  2. Step 2: Convert to fraction form
    285,306.68/393,610.92 = 183,316.88/x
  3. Step 3: Cross multiply
    285,306.68x = 393,610.92 × 183,316.88
  4. Step 4: Simplify right side
    285,306.68x = 72,155,525,788.33
  5. Step 5: Solve for x
    x = 72,155,525,788.33/285,306.68
  6. Step 6: Final answer
    x = 252,905.14

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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.