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Finding the Fourth Proportional to 372,454.80, 558,682.20 and 135,967.20

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Solution

The fourth proportional to 372,454.80, 558,682.20 and 135,967.20 is: 203,950.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,454.80 : 558,682.20 = 135,967.20 : x
  2. Step 2: Convert to fraction form
    372,454.80/558,682.20 = 135,967.20/x
  3. Step 3: Cross multiply
    372,454.80x = 558,682.20 × 135,967.20
  4. Step 4: Simplify right side
    372,454.80x = 75,962,454,423.84
  5. Step 5: Solve for x
    x = 75,962,454,423.84/372,454.80
  6. Step 6: Final answer
    x = 203,950.80

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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.