Home / 220,890.40-331,335.60-73,146.40

Finding the Fourth Proportional to 220,890.40, 331,335.60 and 73,146.40

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Solution

The fourth proportional to 220,890.40, 331,335.60 and 73,146.40 is: 109,719.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,890.40 : 331,335.60 = 73,146.40 : x
  2. Step 2: Convert to fraction form
    220,890.40/331,335.60 = 73,146.40/x
  3. Step 3: Cross multiply
    220,890.40x = 331,335.60 × 73,146.40
  4. Step 4: Simplify right side
    220,890.40x = 24,236,006,331.84
  5. Step 5: Solve for x
    x = 24,236,006,331.84/220,890.40
  6. Step 6: Final answer
    x = 109,719.60

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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.