Home / 399,441.28-551,232.72-227,350.84

Finding the Fourth Proportional to 399,441.28, 551,232.72 and 227,350.84

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Solution

The fourth proportional to 399,441.28, 551,232.72 and 227,350.84 is: 313,746.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,441.28 : 551,232.72 = 227,350.84 : x
  2. Step 2: Convert to fraction form
    399,441.28/551,232.72 = 227,350.84/x
  3. Step 3: Cross multiply
    399,441.28x = 551,232.72 × 227,350.84
  4. Step 4: Simplify right side
    399,441.28x = 125,323,221,927.49
  5. Step 5: Solve for x
    x = 125,323,221,927.49/399,441.28
  6. Step 6: Final answer
    x = 313,746.30

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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.