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Finding the Fourth Proportional to 366,004.80, 549,007.20 and 129,355.20

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Solution

The fourth proportional to 366,004.80, 549,007.20 and 129,355.20 is: 194,032.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,004.80 : 549,007.20 = 129,355.20 : x
  2. Step 2: Convert to fraction form
    366,004.80/549,007.20 = 129,355.20/x
  3. Step 3: Cross multiply
    366,004.80x = 549,007.20 × 129,355.20
  4. Step 4: Simplify right side
    366,004.80x = 71,016,936,157.44
  5. Step 5: Solve for x
    x = 71,016,936,157.44/366,004.80
  6. Step 6: Final answer
    x = 194,032.80

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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.