Home / 279,784.02-419,635.04-137,591.08

Finding the Fourth Proportional to 279,784.02, 419,635.04 and 137,591.08

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Solution

The fourth proportional to 279,784.02, 419,635.04 and 137,591.08 is: 206,366.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,784.02 : 419,635.04 = 137,591.08 : x
  2. Step 2: Convert to fraction form
    279,784.02/419,635.04 = 137,591.08/x
  3. Step 3: Cross multiply
    279,784.02x = 419,635.04 × 137,591.08
  4. Step 4: Simplify right side
    279,784.02x = 57,738,038,359.44
  5. Step 5: Solve for x
    x = 57,738,038,359.44/279,784.02
  6. Step 6: Final answer
    x = 206,366.46

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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.