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Finding the Fourth Proportional to 485,755.00, 728,681.11 and 148,791.76

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Solution

The fourth proportional to 485,755.00, 728,681.11 and 148,791.76 is: 223,202.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,755.00 : 728,681.11 = 148,791.76 : x
  2. Step 2: Convert to fraction form
    485,755.00/728,681.11 = 148,791.76/x
  3. Step 3: Cross multiply
    485,755.00x = 728,681.11 × 148,791.76
  4. Step 4: Simplify right side
    485,755.00x = 108,421,742,641.97
  5. Step 5: Solve for x
    x = 108,421,742,641.97/485,755.00
  6. Step 6: Final answer
    x = 223,202.53

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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.