Home / 415,380.30-623,181.21-149,143.12

Finding the Fourth Proportional to 415,380.30, 623,181.21 and 149,143.12

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Solution

The fourth proportional to 415,380.30, 623,181.21 and 149,143.12 is: 223,754.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,380.30 : 623,181.21 = 149,143.12 : x
  2. Step 2: Convert to fraction form
    415,380.30/623,181.21 = 149,143.12/x
  3. Step 3: Cross multiply
    415,380.30x = 623,181.21 × 149,143.12
  4. Step 4: Simplify right side
    415,380.30x = 92,943,187,681.11
  5. Step 5: Solve for x
    x = 92,943,187,681.11/415,380.30
  6. Step 6: Final answer
    x = 223,754.44

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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.