Home / 215,979.40-323,531.70-149,494.60

Finding the Fourth Proportional to 215,979.40, 323,531.70 and 149,494.60

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Solution

The fourth proportional to 215,979.40, 323,531.70 and 149,494.60 is: 223,939.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,979.40 : 323,531.70 = 149,494.60 : x
  2. Step 2: Convert to fraction form
    215,979.40/323,531.70 = 149,494.60/x
  3. Step 3: Cross multiply
    215,979.40x = 323,531.70 × 149,494.60
  4. Step 4: Simplify right side
    215,979.40x = 48,366,242,078.82
  5. Step 5: Solve for x
    x = 48,366,242,078.82/215,979.40
  6. Step 6: Final answer
    x = 223,939.14

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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.