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Finding the Fourth Proportional to 155,452.40, 214,524.30 and 88,384.40

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Solution

The fourth proportional to 155,452.40, 214,524.30 and 88,384.40 is: 121,970.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,452.40 : 214,524.30 = 88,384.40 : x
  2. Step 2: Convert to fraction form
    155,452.40/214,524.30 = 88,384.40/x
  3. Step 3: Cross multiply
    155,452.40x = 214,524.30 × 88,384.40
  4. Step 4: Simplify right side
    155,452.40x = 18,960,601,540.92
  5. Step 5: Solve for x
    x = 18,960,601,540.92/155,452.40
  6. Step 6: Final answer
    x = 121,970.47

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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.