Home / 268,724.79-402,998.90-118,961.87

Finding the Fourth Proportional to 268,724.79, 402,998.90 and 118,961.87

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Solution

The fourth proportional to 268,724.79, 402,998.90 and 118,961.87 is: 178,403.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,724.79 : 402,998.90 = 118,961.87 : x
  2. Step 2: Convert to fraction form
    268,724.79/402,998.90 = 118,961.87/x
  3. Step 3: Cross multiply
    268,724.79x = 402,998.90 × 118,961.87
  4. Step 4: Simplify right side
    268,724.79x = 47,941,500,142.14
  5. Step 5: Solve for x
    x = 47,941,500,142.14/268,724.79
  6. Step 6: Final answer
    x = 178,403.71

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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.