Home / 319,939.12-441,476.76-203,612.48

Finding the Fourth Proportional to 319,939.12, 441,476.76 and 203,612.48

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Solution

The fourth proportional to 319,939.12, 441,476.76 and 203,612.48 is: 280,960.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,939.12 : 441,476.76 = 203,612.48 : x
  2. Step 2: Convert to fraction form
    319,939.12/441,476.76 = 203,612.48/x
  3. Step 3: Cross multiply
    319,939.12x = 441,476.76 × 203,612.48
  4. Step 4: Simplify right side
    319,939.12x = 89,890,177,965.96
  5. Step 5: Solve for x
    x = 89,890,177,965.96/319,939.12
  6. Step 6: Final answer
    x = 280,960.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.