Home / 388,819.28-536,387.24-227,574.47

Finding the Fourth Proportional to 388,819.28, 536,387.24 and 227,574.47

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Solution

The fourth proportional to 388,819.28, 536,387.24 and 227,574.47 is: 313,945.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,819.28 : 536,387.24 = 227,574.47 : x
  2. Step 2: Convert to fraction form
    388,819.28/536,387.24 = 227,574.47/x
  3. Step 3: Cross multiply
    388,819.28x = 536,387.24 × 227,574.47
  4. Step 4: Simplify right side
    388,819.28x = 122,068,038,037.95
  5. Step 5: Solve for x
    x = 122,068,038,037.95/388,819.28
  6. Step 6: Final answer
    x = 313,945.44

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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.