Home / 203,220.13-280,440.75-112,575.82

Finding the Fourth Proportional to 203,220.13, 280,440.75 and 112,575.82

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Solution

The fourth proportional to 203,220.13, 280,440.75 and 112,575.82 is: 155,352.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,220.13 : 280,440.75 = 112,575.82 : x
  2. Step 2: Convert to fraction form
    203,220.13/280,440.75 = 112,575.82/x
  3. Step 3: Cross multiply
    203,220.13x = 280,440.75 × 112,575.82
  4. Step 4: Simplify right side
    203,220.13x = 31,570,847,392.67
  5. Step 5: Solve for x
    x = 31,570,847,392.67/203,220.13
  6. Step 6: Final answer
    x = 155,352.95

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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.