Home / 268,220.20-402,074.30-99,695.40

Finding the Fourth Proportional to 268,220.20, 402,074.30 and 99,695.40

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Solution

The fourth proportional to 268,220.20, 402,074.30 and 99,695.40 is: 149,447.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,220.20 : 402,074.30 = 99,695.40 : x
  2. Step 2: Convert to fraction form
    268,220.20/402,074.30 = 99,695.40/x
  3. Step 3: Cross multiply
    268,220.20x = 402,074.30 × 99,695.40
  4. Step 4: Simplify right side
    268,220.20x = 40,084,958,168.22
  5. Step 5: Solve for x
    x = 40,084,958,168.22/268,220.20
  6. Step 6: Final answer
    x = 149,447.95

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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.