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Finding the Fourth Proportional to 485,308.88, 727,965.19 and 148,348.24

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Solution

The fourth proportional to 485,308.88, 727,965.19 and 148,348.24 is: 222,522.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,308.88 : 727,965.19 = 148,348.24 : x
  2. Step 2: Convert to fraction form
    485,308.88/727,965.19 = 148,348.24/x
  3. Step 3: Cross multiply
    485,308.88x = 727,965.19 × 148,348.24
  4. Step 4: Simplify right side
    485,308.88x = 107,992,354,717.77
  5. Step 5: Solve for x
    x = 107,992,354,717.77/485,308.88
  6. Step 6: Final answer
    x = 222,522.93

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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.