Home / 331,838.20-497,757.30-82,520.20

Finding the Fourth Proportional to 331,838.20, 497,757.30 and 82,520.20

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Solution

The fourth proportional to 331,838.20, 497,757.30 and 82,520.20 is: 123,780.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,838.20 : 497,757.30 = 82,520.20 : x
  2. Step 2: Convert to fraction form
    331,838.20/497,757.30 = 82,520.20/x
  3. Step 3: Cross multiply
    331,838.20x = 497,757.30 × 82,520.20
  4. Step 4: Simplify right side
    331,838.20x = 41,075,031,947.46
  5. Step 5: Solve for x
    x = 41,075,031,947.46/331,838.20
  6. Step 6: Final answer
    x = 123,780.30

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1.5x scale

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.