Home / 343,256.20-515,229.90-165,905.80

Finding the Fourth Proportional to 343,256.20, 515,229.90 and 165,905.80

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Solution

The fourth proportional to 343,256.20, 515,229.90 and 165,905.80 is: 249,025.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,256.20 : 515,229.90 = 165,905.80 : x
  2. Step 2: Convert to fraction form
    343,256.20/515,229.90 = 165,905.80/x
  3. Step 3: Cross multiply
    343,256.20x = 515,229.90 × 165,905.80
  4. Step 4: Simplify right side
    343,256.20x = 85,479,628,743.42
  5. Step 5: Solve for x
    x = 85,479,628,743.42/343,256.20
  6. Step 6: Final answer
    x = 249,025.74

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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.