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Finding the Fourth Proportional to 315,342.47, 435,182.75 and 179,372.91

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Solution

The fourth proportional to 315,342.47, 435,182.75 and 179,372.91 is: 247,540.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,342.47 : 435,182.75 = 179,372.91 : x
  2. Step 2: Convert to fraction form
    315,342.47/435,182.75 = 179,372.91/x
  3. Step 3: Cross multiply
    315,342.47x = 435,182.75 × 179,372.91
  4. Step 4: Simplify right side
    315,342.47x = 78,059,995,352.44
  5. Step 5: Solve for x
    x = 78,059,995,352.44/315,342.47
  6. Step 6: Final answer
    x = 247,540.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.