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Finding the Fourth Proportional to 360,099.72, 496,781.51 and 216,776.73

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Solution

The fourth proportional to 360,099.72, 496,781.51 and 216,776.73 is: 299,057.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,099.72 : 496,781.51 = 216,776.73 : x
  2. Step 2: Convert to fraction form
    360,099.72/496,781.51 = 216,776.73/x
  3. Step 3: Cross multiply
    360,099.72x = 496,781.51 × 216,776.73
  4. Step 4: Simplify right side
    360,099.72x = 107,690,670,178.38
  5. Step 5: Solve for x
    x = 107,690,670,178.38/360,099.72
  6. Step 6: Final answer
    x = 299,057.91

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1.5x scale

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.