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Finding the Fourth Proportional to 486,480.65, 729,475.98 and 162,153.87

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Solution

The fourth proportional to 486,480.65, 729,475.98 and 162,153.87 is: 243,149.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,480.65 : 729,475.98 = 162,153.87 : x
  2. Step 2: Convert to fraction form
    486,480.65/729,475.98 = 162,153.87/x
  3. Step 3: Cross multiply
    486,480.65x = 729,475.98 × 162,153.87
  4. Step 4: Simplify right side
    486,480.65x = 118,287,353,229.04
  5. Step 5: Solve for x
    x = 118,287,353,229.04/486,480.65
  6. Step 6: Final answer
    x = 243,149.15

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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.