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Finding the Fourth Proportional to 499,801.20, 749,740.68 and 144,820.32

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Solution

The fourth proportional to 499,801.20, 749,740.68 and 144,820.32 is: 217,241.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,801.20 : 749,740.68 = 144,820.32 : x
  2. Step 2: Convert to fraction form
    499,801.20/749,740.68 = 144,820.32/x
  3. Step 3: Cross multiply
    499,801.20x = 749,740.68 × 144,820.32
  4. Step 4: Simplify right side
    499,801.20x = 108,577,685,194.62
  5. Step 5: Solve for x
    x = 108,577,685,194.62/499,801.20
  6. Step 6: Final answer
    x = 217,241.75

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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.