Home / 286,731.97-395,700.22-157,680.25

Finding the Fourth Proportional to 286,731.97, 395,700.22 and 157,680.25

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Solution

The fourth proportional to 286,731.97, 395,700.22 and 157,680.25 is: 217,604.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,731.97 : 395,700.22 = 157,680.25 : x
  2. Step 2: Convert to fraction form
    286,731.97/395,700.22 = 157,680.25/x
  3. Step 3: Cross multiply
    286,731.97x = 395,700.22 × 157,680.25
  4. Step 4: Simplify right side
    286,731.97x = 62,394,108,822.50
  5. Step 5: Solve for x
    x = 62,394,108,822.50/286,731.97
  6. Step 6: Final answer
    x = 217,604.30

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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.