Home / 259,811.70-389,717.55-175,612.20

Finding the Fourth Proportional to 259,811.70, 389,717.55 and 175,612.20

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Solution

The fourth proportional to 259,811.70, 389,717.55 and 175,612.20 is: 263,418.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,811.70 : 389,717.55 = 175,612.20 : x
  2. Step 2: Convert to fraction form
    259,811.70/389,717.55 = 175,612.20/x
  3. Step 3: Cross multiply
    259,811.70x = 389,717.55 × 175,612.20
  4. Step 4: Simplify right side
    259,811.70x = 68,439,156,334.11
  5. Step 5: Solve for x
    x = 68,439,156,334.11/259,811.70
  6. Step 6: Final answer
    x = 263,418.30

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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.