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Finding the Fourth Proportional to 155,342.52, 214,380.48 and 87,380.88

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Solution

The fourth proportional to 155,342.52, 214,380.48 and 87,380.88 is: 120,590.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,342.52 : 214,380.48 = 87,380.88 : x
  2. Step 2: Convert to fraction form
    155,342.52/214,380.48 = 87,380.88/x
  3. Step 3: Cross multiply
    155,342.52x = 214,380.48 × 87,380.88
  4. Step 4: Simplify right side
    155,342.52x = 18,732,754,997.22
  5. Step 5: Solve for x
    x = 18,732,754,997.22/155,342.52
  6. Step 6: Final answer
    x = 120,590.00

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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.