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Finding the Fourth Proportional to 371,774.81, 513,049.24 and 220,871.81

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Solution

The fourth proportional to 371,774.81, 513,049.24 and 220,871.81 is: 304,803.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,774.81 : 513,049.24 = 220,871.81 : x
  2. Step 2: Convert to fraction form
    371,774.81/513,049.24 = 220,871.81/x
  3. Step 3: Cross multiply
    371,774.81x = 513,049.24 × 220,871.81
  4. Step 4: Simplify right side
    371,774.81x = 113,318,115,816.64
  5. Step 5: Solve for x
    x = 113,318,115,816.64/371,774.81
  6. Step 6: Final answer
    x = 304,803.10

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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.