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Finding the Fourth Proportional to 488,489.40, 732,150.90 and 251,710.20

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Solution

The fourth proportional to 488,489.40, 732,150.90 and 251,710.20 is: 377,264.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,489.40 : 732,150.90 = 251,710.20 : x
  2. Step 2: Convert to fraction form
    488,489.40/732,150.90 = 251,710.20/x
  3. Step 3: Cross multiply
    488,489.40x = 732,150.90 × 251,710.20
  4. Step 4: Simplify right side
    488,489.40x = 184,289,849,469.18
  5. Step 5: Solve for x
    x = 184,289,849,469.18/488,489.40
  6. Step 6: Final answer
    x = 377,264.79

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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.