Home / 268,891.20-403,336.80-169,358.40

Finding the Fourth Proportional to 268,891.20, 403,336.80 and 169,358.40

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Solution

The fourth proportional to 268,891.20, 403,336.80 and 169,358.40 is: 254,037.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,891.20 : 403,336.80 = 169,358.40 : x
  2. Step 2: Convert to fraction form
    268,891.20/403,336.80 = 169,358.40/x
  3. Step 3: Cross multiply
    268,891.20x = 403,336.80 × 169,358.40
  4. Step 4: Simplify right side
    268,891.20x = 68,308,475,109.12
  5. Step 5: Solve for x
    x = 68,308,475,109.12/268,891.20
  6. Step 6: Final answer
    x = 254,037.60

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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.