Home / 279,900.28-419,744.02-90,332.23

Finding the Fourth Proportional to 279,900.28, 419,744.02 and 90,332.23

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Solution

The fourth proportional to 279,900.28, 419,744.02 and 90,332.23 is: 135,464.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,900.28 : 419,744.02 = 90,332.23 : x
  2. Step 2: Convert to fraction form
    279,900.28/419,744.02 = 90,332.23/x
  3. Step 3: Cross multiply
    279,900.28x = 419,744.02 × 90,332.23
  4. Step 4: Simplify right side
    279,900.28x = 37,916,410,805.38
  5. Step 5: Solve for x
    x = 37,916,410,805.38/279,900.28
  6. Step 6: Final answer
    x = 135,464.00

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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.