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Finding the Fourth Proportional to 372,281.40, 558,422.10 and 230,563.80

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Solution

The fourth proportional to 372,281.40, 558,422.10 and 230,563.80 is: 345,845.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,281.40 : 558,422.10 = 230,563.80 : x
  2. Step 2: Convert to fraction form
    372,281.40/558,422.10 = 230,563.80/x
  3. Step 3: Cross multiply
    372,281.40x = 558,422.10 × 230,563.80
  4. Step 4: Simplify right side
    372,281.40x = 128,751,921,379.98
  5. Step 5: Solve for x
    x = 128,751,921,379.98/372,281.40
  6. Step 6: Final answer
    x = 345,845.70

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Similar ratio
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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.