Home / 279,955.28-386,340.55-152,631.80

Finding the Fourth Proportional to 279,955.28, 386,340.55 and 152,631.80

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Solution

The fourth proportional to 279,955.28, 386,340.55 and 152,631.80 is: 210,633.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,955.28 : 386,340.55 = 152,631.80 : x
  2. Step 2: Convert to fraction form
    279,955.28/386,340.55 = 152,631.80/x
  3. Step 3: Cross multiply
    279,955.28x = 386,340.55 × 152,631.80
  4. Step 4: Simplify right side
    279,955.28x = 58,967,853,559.49
  5. Step 5: Solve for x
    x = 58,967,853,559.49/279,955.28
  6. Step 6: Final answer
    x = 210,633.12

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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.