Home / 260,542.20-390,813.30-176,342.70

Finding the Fourth Proportional to 260,542.20, 390,813.30 and 176,342.70

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Solution

The fourth proportional to 260,542.20, 390,813.30 and 176,342.70 is: 264,514.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,542.20 : 390,813.30 = 176,342.70 : x
  2. Step 2: Convert to fraction form
    260,542.20/390,813.30 = 176,342.70/x
  3. Step 3: Cross multiply
    260,542.20x = 390,813.30 × 176,342.70
  4. Step 4: Simplify right side
    260,542.20x = 68,917,072,517.91
  5. Step 5: Solve for x
    x = 68,917,072,517.91/260,542.20
  6. Step 6: Final answer
    x = 264,514.05

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1.5x scale

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.