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Finding the Fourth Proportional to 486,099.12, 729,262.09 and 166,253.47

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Solution

The fourth proportional to 486,099.12, 729,262.09 and 166,253.47 is: 249,418.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,099.12 : 729,262.09 = 166,253.47 : x
  2. Step 2: Convert to fraction form
    486,099.12/729,262.09 = 166,253.47/x
  3. Step 3: Cross multiply
    486,099.12x = 729,262.09 × 166,253.47
  4. Step 4: Simplify right side
    486,099.12x = 121,242,353,001.95
  5. Step 5: Solve for x
    x = 121,242,353,001.95/486,099.12
  6. Step 6: Final answer
    x = 249,418.99

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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.