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Finding the Fourth Proportional to 361,452.42, 542,364.53 and 172,127.48

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Solution

The fourth proportional to 361,452.42, 542,364.53 and 172,127.48 is: 258,279.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,452.42 : 542,364.53 = 172,127.48 : x
  2. Step 2: Convert to fraction form
    361,452.42/542,364.53 = 172,127.48/x
  3. Step 3: Cross multiply
    361,452.42x = 542,364.53 × 172,127.48
  4. Step 4: Simplify right side
    361,452.42x = 93,355,836,217.82
  5. Step 5: Solve for x
    x = 93,355,836,217.82/361,452.42
  6. Step 6: Final answer
    x = 258,279.74

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1.5x scale

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.