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Finding the Fourth Proportional to 234,397.45, 323,445.31 and 131,012.29

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Solution

The fourth proportional to 234,397.45, 323,445.31 and 131,012.29 is: 180,784.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,397.45 : 323,445.31 = 131,012.29 : x
  2. Step 2: Convert to fraction form
    234,397.45/323,445.31 = 131,012.29/x
  3. Step 3: Cross multiply
    234,397.45x = 323,445.31 × 131,012.29
  4. Step 4: Simplify right side
    234,397.45x = 42,375,310,752.86
  5. Step 5: Solve for x
    x = 42,375,310,752.86/234,397.45
  6. Step 6: Final answer
    x = 180,784.01

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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.