Home / 203,340.85-280,610.40-112,702.66

Finding the Fourth Proportional to 203,340.85, 280,610.40 and 112,702.66

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Solution

The fourth proportional to 203,340.85, 280,610.40 and 112,702.66 is: 155,529.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,340.85 : 280,610.40 = 112,702.66 : x
  2. Step 2: Convert to fraction form
    203,340.85/280,610.40 = 112,702.66/x
  3. Step 3: Cross multiply
    203,340.85x = 280,610.40 × 112,702.66
  4. Step 4: Simplify right side
    203,340.85x = 31,625,538,503.66
  5. Step 5: Solve for x
    x = 31,625,538,503.66/203,340.85
  6. Step 6: Final answer
    x = 155,529.69

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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.