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Finding the Fourth Proportional to 488,445.76, 732,078 and 251,659.20

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Solution

The fourth proportional to 488,445.76, 732,078 and 251,659.20 is: 377,184.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,445.76 : 732,078 = 251,659.20 : x
  2. Step 2: Convert to fraction form
    488,445.76/732,078 = 251,659.20/x
  3. Step 3: Cross multiply
    488,445.76x = 732,078 × 251,659.20
  4. Step 4: Simplify right side
    488,445.76x = 184,234,163,817.60
  5. Step 5: Solve for x
    x = 184,234,163,817.60/488,445.76
  6. Step 6: Final answer
    x = 377,184.49

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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.