Home / 330,004.30-495,006.45-217,811.20

Finding the Fourth Proportional to 330,004.30, 495,006.45 and 217,811.20

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Solution

The fourth proportional to 330,004.30, 495,006.45 and 217,811.20 is: 326,716.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,004.30 : 495,006.45 = 217,811.20 : x
  2. Step 2: Convert to fraction form
    330,004.30/495,006.45 = 217,811.20/x
  3. Step 3: Cross multiply
    330,004.30x = 495,006.45 × 217,811.20
  4. Step 4: Simplify right side
    330,004.30x = 107,817,948,882.24
  5. Step 5: Solve for x
    x = 107,817,948,882.24/330,004.30
  6. Step 6: Final answer
    x = 326,716.80

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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.