Home / 279,134.28-385,194.24-151,809.84

Finding the Fourth Proportional to 279,134.28, 385,194.24 and 151,809.84

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Solution

The fourth proportional to 279,134.28, 385,194.24 and 151,809.84 is: 209,491.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,134.28 : 385,194.24 = 151,809.84 : x
  2. Step 2: Convert to fraction form
    279,134.28/385,194.24 = 151,809.84/x
  3. Step 3: Cross multiply
    279,134.28x = 385,194.24 × 151,809.84
  4. Step 4: Simplify right side
    279,134.28x = 58,476,275,943.32
  5. Step 5: Solve for x
    x = 58,476,275,943.32/279,134.28
  6. Step 6: Final answer
    x = 209,491.56

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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.