Home / 281,291.94-421,916.04-123,521.76

Finding the Fourth Proportional to 281,291.94, 421,916.04 and 123,521.76

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Solution

The fourth proportional to 281,291.94, 421,916.04 and 123,521.76 is: 185,273.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,291.94 : 421,916.04 = 123,521.76 : x
  2. Step 2: Convert to fraction form
    281,291.94/421,916.04 = 123,521.76/x
  3. Step 3: Cross multiply
    281,291.94x = 421,916.04 × 123,521.76
  4. Step 4: Simplify right side
    281,291.94x = 52,115,811,833.03
  5. Step 5: Solve for x
    x = 52,115,811,833.03/281,291.94
  6. Step 6: Final answer
    x = 185,273.04

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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.