Home / 402,334.20-555,230.46-221,057.44

Finding the Fourth Proportional to 402,334.20, 555,230.46 and 221,057.44

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Solution

The fourth proportional to 402,334.20, 555,230.46 and 221,057.44 is: 305,064.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,334.20 : 555,230.46 = 221,057.44 : x
  2. Step 2: Convert to fraction form
    402,334.20/555,230.46 = 221,057.44/x
  3. Step 3: Cross multiply
    402,334.20x = 555,230.46 × 221,057.44
  4. Step 4: Simplify right side
    402,334.20x = 122,737,824,097.62
  5. Step 5: Solve for x
    x = 122,737,824,097.62/402,334.20
  6. Step 6: Final answer
    x = 305,064.36

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1.5x scale

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.