Home / 399,427.33-551,213.45-227,336.85

Finding the Fourth Proportional to 399,427.33, 551,213.45 and 227,336.85

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Solution

The fourth proportional to 399,427.33, 551,213.45 and 227,336.85 is: 313,726.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,427.33 : 551,213.45 = 227,336.85 : x
  2. Step 2: Convert to fraction form
    399,427.33/551,213.45 = 227,336.85/x
  3. Step 3: Cross multiply
    399,427.33x = 551,213.45 × 227,336.85
  4. Step 4: Simplify right side
    399,427.33x = 125,311,129,400.63
  5. Step 5: Solve for x
    x = 125,311,129,400.63/399,427.33
  6. Step 6: Final answer
    x = 313,726.98

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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.