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Finding the Fourth Proportional to 485,473.03, 728,208.48 and 130,487.04

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Solution

The fourth proportional to 485,473.03, 728,208.48 and 130,487.04 is: 195,730.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,473.03 : 728,208.48 = 130,487.04 : x
  2. Step 2: Convert to fraction form
    485,473.03/728,208.48 = 130,487.04/x
  3. Step 3: Cross multiply
    485,473.03x = 728,208.48 × 130,487.04
  4. Step 4: Simplify right side
    485,473.03x = 95,021,769,058.10
  5. Step 5: Solve for x
    x = 95,021,769,058.10/485,473.03
  6. Step 6: Final answer
    x = 195,730.27

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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.