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Finding the Fourth Proportional to 155,452.50, 214,534.17 and 88,384.50

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Solution

The fourth proportional to 155,452.50, 214,534.17 and 88,384.50 is: 121,976.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,452.50 : 214,534.17 = 88,384.50 : x
  2. Step 2: Convert to fraction form
    155,452.50/214,534.17 = 88,384.50/x
  3. Step 3: Cross multiply
    155,452.50x = 214,534.17 × 88,384.50
  4. Step 4: Simplify right side
    155,452.50x = 18,961,495,348.37
  5. Step 5: Solve for x
    x = 18,961,495,348.37/155,452.50
  6. Step 6: Final answer
    x = 121,976.14

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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.