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Finding the Fourth Proportional to 499,355.42, 749,104.20 and 162,287.70

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Solution

The fourth proportional to 499,355.42, 749,104.20 and 162,287.70 is: 243,454.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,355.42 : 749,104.20 = 162,287.70 : x
  2. Step 2: Convert to fraction form
    499,355.42/749,104.20 = 162,287.70/x
  3. Step 3: Cross multiply
    499,355.42x = 749,104.20 × 162,287.70
  4. Step 4: Simplify right side
    499,355.42x = 121,570,397,678.34
  5. Step 5: Solve for x
    x = 121,570,397,678.34/499,355.42
  6. Step 6: Final answer
    x = 243,454.65

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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.