Home / 280,917.02-387,570.52-159,972.55

Finding the Fourth Proportional to 280,917.02, 387,570.52 and 159,972.55

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Solution

The fourth proportional to 280,917.02, 387,570.52 and 159,972.55 is: 220,708.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,917.02 : 387,570.52 = 159,972.55 : x
  2. Step 2: Convert to fraction form
    280,917.02/387,570.52 = 159,972.55/x
  3. Step 3: Cross multiply
    280,917.02x = 387,570.52 × 159,972.55
  4. Step 4: Simplify right side
    280,917.02x = 62,000,644,389.23
  5. Step 5: Solve for x
    x = 62,000,644,389.23/280,917.02
  6. Step 6: Final answer
    x = 220,708.04

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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.