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Finding the Fourth Proportional to 272,565, 408,581.87 and 130,373.15

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Solution

The fourth proportional to 272,565, 408,581.87 and 130,373.15 is: 195,432.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,565 : 408,581.87 = 130,373.15 : x
  2. Step 2: Convert to fraction form
    272,565/408,581.87 = 130,373.15/x
  3. Step 3: Cross multiply
    272,565x = 408,581.87 × 130,373.15
  4. Step 4: Simplify right side
    272,565x = 53,268,102,730.02
  5. Step 5: Solve for x
    x = 53,268,102,730.02/272,565
  6. Step 6: Final answer
    x = 195,432.66

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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.