Home / 278,456.14-384,203.61-157,597.42

Finding the Fourth Proportional to 278,456.14, 384,203.61 and 157,597.42

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Solution

The fourth proportional to 278,456.14, 384,203.61 and 157,597.42 is: 217,447.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,456.14 : 384,203.61 = 157,597.42 : x
  2. Step 2: Convert to fraction form
    278,456.14/384,203.61 = 157,597.42/x
  3. Step 3: Cross multiply
    278,456.14x = 384,203.61 × 157,597.42
  4. Step 4: Simplify right side
    278,456.14x = 60,549,496,711.82
  5. Step 5: Solve for x
    x = 60,549,496,711.82/278,456.14
  6. Step 6: Final answer
    x = 217,447.16

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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.