Home / 280,261.08-386,758.16-159,402.22

Finding the Fourth Proportional to 280,261.08, 386,758.16 and 159,402.22

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Solution

The fourth proportional to 280,261.08, 386,758.16 and 159,402.22 is: 219,973.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,261.08 : 386,758.16 = 159,402.22 : x
  2. Step 2: Convert to fraction form
    280,261.08/386,758.16 = 159,402.22/x
  3. Step 3: Cross multiply
    280,261.08x = 386,758.16 × 159,402.22
  4. Step 4: Simplify right side
    280,261.08x = 61,650,108,738.73
  5. Step 5: Solve for x
    x = 61,650,108,738.73/280,261.08
  6. Step 6: Final answer
    x = 219,973.85

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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.