Home / 278,012.16-383,652.61-157,149.20

Finding the Fourth Proportional to 278,012.16, 383,652.61 and 157,149.20

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Solution

The fourth proportional to 278,012.16, 383,652.61 and 157,149.20 is: 216,863.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,012.16 : 383,652.61 = 157,149.20 : x
  2. Step 2: Convert to fraction form
    278,012.16/383,652.61 = 157,149.20/x
  3. Step 3: Cross multiply
    278,012.16x = 383,652.61 × 157,149.20
  4. Step 4: Simplify right side
    278,012.16x = 60,290,698,821.15
  5. Step 5: Solve for x
    x = 60,290,698,821.15/278,012.16
  6. Step 6: Final answer
    x = 216,863.54

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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.