Home / 268,867.20-402,814.80-156,455.40

Finding the Fourth Proportional to 268,867.20, 402,814.80 and 156,455.40

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Solution

The fourth proportional to 268,867.20, 402,814.80 and 156,455.40 is: 234,400.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,867.20 : 402,814.80 = 156,455.40 : x
  2. Step 2: Convert to fraction form
    268,867.20/402,814.80 = 156,455.40/x
  3. Step 3: Cross multiply
    268,867.20x = 402,814.80 × 156,455.40
  4. Step 4: Simplify right side
    268,867.20x = 63,022,550,659.92
  5. Step 5: Solve for x
    x = 63,022,550,659.92/268,867.20
  6. Step 6: Final answer
    x = 234,400.29

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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.