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Finding the Fourth Proportional to 488,500.40, 732,167.40 and 251,721.20

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Solution

The fourth proportional to 488,500.40, 732,167.40 and 251,721.20 is: 377,281.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,500.40 : 732,167.40 = 251,721.20 : x
  2. Step 2: Convert to fraction form
    488,500.40/732,167.40 = 251,721.20/x
  3. Step 3: Cross multiply
    488,500.40x = 732,167.40 × 251,721.20
  4. Step 4: Simplify right side
    488,500.40x = 184,302,056,528.88
  5. Step 5: Solve for x
    x = 184,302,056,528.88/488,500.40
  6. Step 6: Final answer
    x = 377,281.28

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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.