Home / 619,512.10-929,049.45-220,165.90

Finding the Fourth Proportional to 619,512.10, 929,049.45 and 220,165.90

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Solution

The fourth proportional to 619,512.10, 929,049.45 and 220,165.90 is: 330,171.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,512.10 : 929,049.45 = 220,165.90 : x
  2. Step 2: Convert to fraction form
    619,512.10/929,049.45 = 220,165.90/x
  3. Step 3: Cross multiply
    619,512.10x = 929,049.45 × 220,165.90
  4. Step 4: Simplify right side
    619,512.10x = 204,545,008,303.76
  5. Step 5: Solve for x
    x = 204,545,008,303.76/619,512.10
  6. Step 6: Final answer
    x = 330,171.13

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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.