Home / 203,287.20-280,532.14-112,642.37

Finding the Fourth Proportional to 203,287.20, 280,532.14 and 112,642.37

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Solution

The fourth proportional to 203,287.20, 280,532.14 and 112,642.37 is: 155,444.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,287.20 : 280,532.14 = 112,642.37 : x
  2. Step 2: Convert to fraction form
    203,287.20/280,532.14 = 112,642.37/x
  3. Step 3: Cross multiply
    203,287.20x = 280,532.14 × 112,642.37
  4. Step 4: Simplify right side
    203,287.20x = 31,599,805,110.77
  5. Step 5: Solve for x
    x = 31,599,805,110.77/203,287.20
  6. Step 6: Final answer
    x = 155,444.15

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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.