Home / 341,524.20-512,432.10-163,939.80

Finding the Fourth Proportional to 341,524.20, 512,432.10 and 163,939.80

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Solution

The fourth proportional to 341,524.20, 512,432.10 and 163,939.80 is: 245,979.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,524.20 : 512,432.10 = 163,939.80 : x
  2. Step 2: Convert to fraction form
    341,524.20/512,432.10 = 163,939.80/x
  3. Step 3: Cross multiply
    341,524.20x = 512,432.10 × 163,939.80
  4. Step 4: Simplify right side
    341,524.20x = 84,008,015,987.58
  5. Step 5: Solve for x
    x = 84,008,015,987.58/341,524.20
  6. Step 6: Final answer
    x = 245,979.69

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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.