Home / 221,005.40-331,508.10-73,261.40

Finding the Fourth Proportional to 221,005.40, 331,508.10 and 73,261.40

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Solution

The fourth proportional to 221,005.40, 331,508.10 and 73,261.40 is: 109,892.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,005.40 : 331,508.10 = 73,261.40 : x
  2. Step 2: Convert to fraction form
    221,005.40/331,508.10 = 73,261.40/x
  3. Step 3: Cross multiply
    221,005.40x = 331,508.10 × 73,261.40
  4. Step 4: Simplify right side
    221,005.40x = 24,286,747,517.34
  5. Step 5: Solve for x
    x = 24,286,747,517.34/221,005.40
  6. Step 6: Final answer
    x = 109,892.10

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1.5x scale

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.