Home / 372,372.48-558,557.90-135,618.40

Finding the Fourth Proportional to 372,372.48, 558,557.90 and 135,618.40

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Solution

The fourth proportional to 372,372.48, 558,557.90 and 135,618.40 is: 203,427.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,372.48 : 558,557.90 = 135,618.40 : x
  2. Step 2: Convert to fraction form
    372,372.48/558,557.90 = 135,618.40/x
  3. Step 3: Cross multiply
    372,372.48x = 558,557.90 × 135,618.40
  4. Step 4: Simplify right side
    372,372.48x = 75,750,728,705.36
  5. Step 5: Solve for x
    x = 75,750,728,705.36/372,372.48
  6. Step 6: Final answer
    x = 203,427.30

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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.