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Finding the Fourth Proportional to 371,122.01, 511,996.13 and 225,811.30

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Solution

The fourth proportional to 371,122.01, 511,996.13 and 225,811.30 is: 311,526.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,122.01 : 511,996.13 = 225,811.30 : x
  2. Step 2: Convert to fraction form
    371,122.01/511,996.13 = 225,811.30/x
  3. Step 3: Cross multiply
    371,122.01x = 511,996.13 × 225,811.30
  4. Step 4: Simplify right side
    371,122.01x = 115,614,510,581.21
  5. Step 5: Solve for x
    x = 115,614,510,581.21/371,122.01
  6. Step 6: Final answer
    x = 311,526.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.