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Finding the Fourth Proportional to 499,312.80, 749,010.42 and 162,345.78

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Solution

The fourth proportional to 499,312.80, 749,010.42 and 162,345.78 is: 243,532.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,312.80 : 749,010.42 = 162,345.78 : x
  2. Step 2: Convert to fraction form
    499,312.80/749,010.42 = 162,345.78/x
  3. Step 3: Cross multiply
    499,312.80x = 749,010.42 × 162,345.78
  4. Step 4: Simplify right side
    499,312.80x = 121,598,680,863.03
  5. Step 5: Solve for x
    x = 121,598,680,863.03/499,312.80
  6. Step 6: Final answer
    x = 243,532.07

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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.