Home / 276,668.28-380,998.23-240,353.15

Finding the Fourth Proportional to 276,668.28, 380,998.23 and 240,353.15

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Solution

The fourth proportional to 276,668.28, 380,998.23 and 240,353.15 is: 330,988.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,668.28 : 380,998.23 = 240,353.15 : x
  2. Step 2: Convert to fraction form
    276,668.28/380,998.23 = 240,353.15/x
  3. Step 3: Cross multiply
    276,668.28x = 380,998.23 × 240,353.15
  4. Step 4: Simplify right side
    276,668.28x = 91,574,124,724.92
  5. Step 5: Solve for x
    x = 91,574,124,724.92/276,668.28
  6. Step 6: Final answer
    x = 330,988.88

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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.