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Finding the Fourth Proportional to 265,142.08, 397,655.52 and 87,607.04

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Solution

The fourth proportional to 265,142.08, 397,655.52 and 87,607.04 is: 131,391.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,142.08 : 397,655.52 = 87,607.04 : x
  2. Step 2: Convert to fraction form
    265,142.08/397,655.52 = 87,607.04/x
  3. Step 3: Cross multiply
    265,142.08x = 397,655.52 × 87,607.04
  4. Step 4: Simplify right side
    265,142.08x = 34,837,423,046.86
  5. Step 5: Solve for x
    x = 34,837,423,046.86/265,142.08
  6. Step 6: Final answer
    x = 131,391.53

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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.