Home / 203,320.92-280,570.12-112,671.60

Finding the Fourth Proportional to 203,320.92, 280,570.12 and 112,671.60

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Solution

The fourth proportional to 203,320.92, 280,570.12 and 112,671.60 is: 155,479.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,320.92 : 280,570.12 = 112,671.60 : x
  2. Step 2: Convert to fraction form
    203,320.92/280,570.12 = 112,671.60/x
  3. Step 3: Cross multiply
    203,320.92x = 280,570.12 × 112,671.60
  4. Step 4: Simplify right side
    203,320.92x = 31,612,284,332.59
  5. Step 5: Solve for x
    x = 31,612,284,332.59/203,320.92
  6. Step 6: Final answer
    x = 155,479.74

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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.