Home / 268,949.20-403,423.80-91,656.40

Finding the Fourth Proportional to 268,949.20, 403,423.80 and 91,656.40

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Solution

The fourth proportional to 268,949.20, 403,423.80 and 91,656.40 is: 137,484.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,949.20 : 403,423.80 = 91,656.40 : x
  2. Step 2: Convert to fraction form
    268,949.20/403,423.80 = 91,656.40/x
  3. Step 3: Cross multiply
    268,949.20x = 403,423.80 × 91,656.40
  4. Step 4: Simplify right side
    268,949.20x = 36,976,373,182.32
  5. Step 5: Solve for x
    x = 36,976,373,182.32/268,949.20
  6. Step 6: Final answer
    x = 137,484.60

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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.