Home / 203,306.10-280,571.34-112,661.85

Finding the Fourth Proportional to 203,306.10, 280,571.34 and 112,661.85

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Solution

The fourth proportional to 203,306.10, 280,571.34 and 112,661.85 is: 155,478.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,306.10 : 280,571.34 = 112,661.85 : x
  2. Step 2: Convert to fraction form
    203,306.10/280,571.34 = 112,661.85/x
  3. Step 3: Cross multiply
    203,306.10x = 280,571.34 × 112,661.85
  4. Step 4: Simplify right side
    203,306.10x = 31,609,686,221.38
  5. Step 5: Solve for x
    x = 31,609,686,221.38/203,306.10
  6. Step 6: Final answer
    x = 155,478.30

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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.