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Finding the Fourth Proportional to 372,373.48, 558,559.40 and 135,619.40

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Solution

The fourth proportional to 372,373.48, 558,559.40 and 135,619.40 is: 203,428.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,373.48 : 558,559.40 = 135,619.40 : x
  2. Step 2: Convert to fraction form
    372,373.48/558,559.40 = 135,619.40/x
  3. Step 3: Cross multiply
    372,373.48x = 558,559.40 × 135,619.40
  4. Step 4: Simplify right side
    372,373.48x = 75,751,490,692.36
  5. Step 5: Solve for x
    x = 75,751,490,692.36/372,373.48
  6. Step 6: Final answer
    x = 203,428.80

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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.