Home / 402,834.90-555,926.10-221,560.52

Finding the Fourth Proportional to 402,834.90, 555,926.10 and 221,560.52

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Solution

The fourth proportional to 402,834.90, 555,926.10 and 221,560.52 is: 305,761.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,834.90 : 555,926.10 = 221,560.52 : x
  2. Step 2: Convert to fraction form
    402,834.90/555,926.10 = 221,560.52/x
  3. Step 3: Cross multiply
    402,834.90x = 555,926.10 × 221,560.52
  4. Step 4: Simplify right side
    402,834.90x = 123,171,275,797.57
  5. Step 5: Solve for x
    x = 123,171,275,797.57/402,834.90
  6. Step 6: Final answer
    x = 305,761.18

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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.