Home / 268,247.52-402,121.26-90,630.45

Finding the Fourth Proportional to 268,247.52, 402,121.26 and 90,630.45

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Solution

The fourth proportional to 268,247.52, 402,121.26 and 90,630.45 is: 135,861.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,247.52 : 402,121.26 = 90,630.45 : x
  2. Step 2: Convert to fraction form
    268,247.52/402,121.26 = 90,630.45/x
  3. Step 3: Cross multiply
    268,247.52x = 402,121.26 × 90,630.45
  4. Step 4: Simplify right side
    268,247.52x = 36,444,430,748.37
  5. Step 5: Solve for x
    x = 36,444,430,748.37/268,247.52
  6. Step 6: Final answer
    x = 135,861.20

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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.