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Finding the Fourth Proportional to 488,036.40, 731,987.10 and 151,308.60

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Solution

The fourth proportional to 488,036.40, 731,987.10 and 151,308.60 is: 226,941.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,036.40 : 731,987.10 = 151,308.60 : x
  2. Step 2: Convert to fraction form
    488,036.40/731,987.10 = 151,308.60/x
  3. Step 3: Cross multiply
    488,036.40x = 731,987.10 × 151,308.60
  4. Step 4: Simplify right side
    488,036.40x = 110,755,943,319.06
  5. Step 5: Solve for x
    x = 110,755,943,319.06/488,036.40
  6. Step 6: Final answer
    x = 226,941.97

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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.