Home / 279,580.20-385,836.88-210,546.04

Finding the Fourth Proportional to 279,580.20, 385,836.88 and 210,546.04

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Solution

The fourth proportional to 279,580.20, 385,836.88 and 210,546.04 is: 290,565.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,580.20 : 385,836.88 = 210,546.04 : x
  2. Step 2: Convert to fraction form
    279,580.20/385,836.88 = 210,546.04/x
  3. Step 3: Cross multiply
    279,580.20x = 385,836.88 × 210,546.04
  4. Step 4: Simplify right side
    279,580.20x = 81,236,427,169.96
  5. Step 5: Solve for x
    x = 81,236,427,169.96/279,580.20
  6. Step 6: Final answer
    x = 290,565.74

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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.