Home / 378,405.16-522,290.10-227,473

Finding the Fourth Proportional to 378,405.16, 522,290.10 and 227,473

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Solution

The fourth proportional to 378,405.16, 522,290.10 and 227,473 is: 313,967.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,405.16 : 522,290.10 = 227,473 : x
  2. Step 2: Convert to fraction form
    378,405.16/522,290.10 = 227,473/x
  3. Step 3: Cross multiply
    378,405.16x = 522,290.10 × 227,473
  4. Step 4: Simplify right side
    378,405.16x = 118,806,895,917.30
  5. Step 5: Solve for x
    x = 118,806,895,917.30/378,405.16
  6. Step 6: Final answer
    x = 313,967.43

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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.