Home / 203,449.14-280,758.45-112,805.16

Finding the Fourth Proportional to 203,449.14, 280,758.45 and 112,805.16

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Solution

The fourth proportional to 203,449.14, 280,758.45 and 112,805.16 is: 155,670.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,449.14 : 280,758.45 = 112,805.16 : x
  2. Step 2: Convert to fraction form
    203,449.14/280,758.45 = 112,805.16/x
  3. Step 3: Cross multiply
    203,449.14x = 280,758.45 × 112,805.16
  4. Step 4: Simplify right side
    203,449.14x = 31,671,001,873.60
  5. Step 5: Solve for x
    x = 31,671,001,873.60/203,449.14
  6. Step 6: Final answer
    x = 155,670.36

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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.