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Finding the Fourth Proportional to 485,307.63, 727,963.23 and 148,346.97

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Solution

The fourth proportional to 485,307.63, 727,963.23 and 148,346.97 is: 222,521.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,307.63 : 727,963.23 = 148,346.97 : x
  2. Step 2: Convert to fraction form
    485,307.63/727,963.23 = 148,346.97/x
  3. Step 3: Cross multiply
    485,307.63x = 727,963.23 × 148,346.97
  4. Step 4: Simplify right side
    485,307.63x = 107,991,141,363.15
  5. Step 5: Solve for x
    x = 107,991,141,363.15/485,307.63
  6. Step 6: Final answer
    x = 222,521.00

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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.