Home / 279,934.90-419,902.35-173,403.70

Finding the Fourth Proportional to 279,934.90, 419,902.35 and 173,403.70

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Solution

The fourth proportional to 279,934.90, 419,902.35 and 173,403.70 is: 260,105.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,934.90 : 419,902.35 = 173,403.70 : x
  2. Step 2: Convert to fraction form
    279,934.90/419,902.35 = 173,403.70/x
  3. Step 3: Cross multiply
    279,934.90x = 419,902.35 × 173,403.70
  4. Step 4: Simplify right side
    279,934.90x = 72,812,621,128.70
  5. Step 5: Solve for x
    x = 72,812,621,128.70/279,934.90
  6. Step 6: Final answer
    x = 260,105.55

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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.