Home / 203,175.20-280,399.12-118,318.88

Finding the Fourth Proportional to 203,175.20, 280,399.12 and 118,318.88

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Solution

The fourth proportional to 203,175.20, 280,399.12 and 118,318.88 is: 163,290.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,175.20 : 280,399.12 = 118,318.88 : x
  2. Step 2: Convert to fraction form
    203,175.20/280,399.12 = 118,318.88/x
  3. Step 3: Cross multiply
    203,175.20x = 280,399.12 × 118,318.88
  4. Step 4: Simplify right side
    203,175.20x = 33,176,509,831.39
  5. Step 5: Solve for x
    x = 33,176,509,831.39/203,175.20
  6. Step 6: Final answer
    x = 163,290.15

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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.