Home / 278,192.52-383,901.14-157,329.28

Finding the Fourth Proportional to 278,192.52, 383,901.14 and 157,329.28

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Solution

The fourth proportional to 278,192.52, 383,901.14 and 157,329.28 is: 217,111.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,192.52 : 383,901.14 = 157,329.28 : x
  2. Step 2: Convert to fraction form
    278,192.52/383,901.14 = 157,329.28/x
  3. Step 3: Cross multiply
    278,192.52x = 383,901.14 × 157,329.28
  4. Step 4: Simplify right side
    278,192.52x = 60,398,889,380.95
  5. Step 5: Solve for x
    x = 60,398,889,380.95/278,192.52
  6. Step 6: Final answer
    x = 217,111.84

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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.