Home / 438,635.12-658,015.44-135,054.96

Finding the Fourth Proportional to 438,635.12, 658,015.44 and 135,054.96

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Solution

The fourth proportional to 438,635.12, 658,015.44 and 135,054.96 is: 202,601.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,635.12 : 658,015.44 = 135,054.96 : x
  2. Step 2: Convert to fraction form
    438,635.12/658,015.44 = 135,054.96/x
  3. Step 3: Cross multiply
    438,635.12x = 658,015.44 × 135,054.96
  4. Step 4: Simplify right side
    438,635.12x = 88,868,248,928.58
  5. Step 5: Solve for x
    x = 88,868,248,928.58/438,635.12
  6. Step 6: Final answer
    x = 202,601.76

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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.