Home / 280,552.20-387,170.42-153,233.80

Finding the Fourth Proportional to 280,552.20, 387,170.42 and 153,233.80

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Solution

The fourth proportional to 280,552.20, 387,170.42 and 153,233.80 is: 211,467.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,552.20 : 387,170.42 = 153,233.80 : x
  2. Step 2: Convert to fraction form
    280,552.20/387,170.42 = 153,233.80/x
  3. Step 3: Cross multiply
    280,552.20x = 387,170.42 × 153,233.80
  4. Step 4: Simplify right side
    280,552.20x = 59,327,594,704.20
  5. Step 5: Solve for x
    x = 59,327,594,704.20/280,552.20
  6. Step 6: Final answer
    x = 211,467.22

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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.