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Finding the Fourth Proportional to 485,633.34, 728,006.27 and 169,918.02

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Solution

The fourth proportional to 485,633.34, 728,006.27 and 169,918.02 is: 254,721.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,633.34 : 728,006.27 = 169,918.02 : x
  2. Step 2: Convert to fraction form
    485,633.34/728,006.27 = 169,918.02/x
  3. Step 3: Cross multiply
    485,633.34x = 728,006.27 × 169,918.02
  4. Step 4: Simplify right side
    485,633.34x = 123,701,383,096.40
  5. Step 5: Solve for x
    x = 123,701,383,096.40/485,633.34
  6. Step 6: Final answer
    x = 254,721.77

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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.