Home / 268,454.96-402,520.78-118,618.72

Finding the Fourth Proportional to 268,454.96, 402,520.78 and 118,618.72

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Solution

The fourth proportional to 268,454.96, 402,520.78 and 118,618.72 is: 177,856.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,454.96 : 402,520.78 = 118,618.72 : x
  2. Step 2: Convert to fraction form
    268,454.96/402,520.78 = 118,618.72/x
  3. Step 3: Cross multiply
    268,454.96x = 402,520.78 × 118,618.72
  4. Step 4: Simplify right side
    268,454.96x = 47,746,499,697.00
  5. Step 5: Solve for x
    x = 47,746,499,697.00/268,454.96
  6. Step 6: Final answer
    x = 177,856.65

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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.