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Finding the Fourth Proportional to 488,442.40, 732,080.40 and 251,663.20

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Solution

The fourth proportional to 488,442.40, 732,080.40 and 251,663.20 is: 377,194.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,442.40 : 732,080.40 = 251,663.20 : x
  2. Step 2: Convert to fraction form
    488,442.40/732,080.40 = 251,663.20/x
  3. Step 3: Cross multiply
    488,442.40x = 732,080.40 × 251,663.20
  4. Step 4: Simplify right side
    488,442.40x = 184,237,696,121.28
  5. Step 5: Solve for x
    x = 184,237,696,121.28/488,442.40
  6. Step 6: Final answer
    x = 377,194.31

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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.