Home / 278,019.90-383,663.30-157,156.94

Finding the Fourth Proportional to 278,019.90, 383,663.30 and 157,156.94

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Solution

The fourth proportional to 278,019.90, 383,663.30 and 157,156.94 is: 216,874.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,019.90 : 383,663.30 = 157,156.94 : x
  2. Step 2: Convert to fraction form
    278,019.90/383,663.30 = 157,156.94/x
  3. Step 3: Cross multiply
    278,019.90x = 383,663.30 × 157,156.94
  4. Step 4: Simplify right side
    278,019.90x = 60,295,350,218.30
  5. Step 5: Solve for x
    x = 60,295,350,218.30/278,019.90
  6. Step 6: Final answer
    x = 216,874.22

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1.5x scale

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.