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Finding the Fourth Proportional to 485,698.03, 728,548.41 and 170,081.12

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Solution

The fourth proportional to 485,698.03, 728,548.41 and 170,081.12 is: 255,122.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,698.03 : 728,548.41 = 170,081.12 : x
  2. Step 2: Convert to fraction form
    485,698.03/728,548.41 = 170,081.12/x
  3. Step 3: Cross multiply
    485,698.03x = 728,548.41 × 170,081.12
  4. Step 4: Simplify right side
    485,698.03x = 123,912,331,049.49
  5. Step 5: Solve for x
    x = 123,912,331,049.49/485,698.03
  6. Step 6: Final answer
    x = 255,122.16

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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.