Home / 268,690.32-402,945.12-135,485.52

Finding the Fourth Proportional to 268,690.32, 402,945.12 and 135,485.52

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Solution

The fourth proportional to 268,690.32, 402,945.12 and 135,485.52 is: 203,182.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,690.32 : 402,945.12 = 135,485.52 : x
  2. Step 2: Convert to fraction form
    268,690.32/402,945.12 = 135,485.52/x
  3. Step 3: Cross multiply
    268,690.32x = 402,945.12 × 135,485.52
  4. Step 4: Simplify right side
    268,690.32x = 54,593,229,114.66
  5. Step 5: Solve for x
    x = 54,593,229,114.66/268,690.32
  6. Step 6: Final answer
    x = 203,182.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.