Home / 279,815.44-386,134.03-152,488.30

Finding the Fourth Proportional to 279,815.44, 386,134.03 and 152,488.30

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Solution

The fourth proportional to 279,815.44, 386,134.03 and 152,488.30 is: 210,427.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,815.44 : 386,134.03 = 152,488.30 : x
  2. Step 2: Convert to fraction form
    279,815.44/386,134.03 = 152,488.30/x
  3. Step 3: Cross multiply
    279,815.44x = 386,134.03 × 152,488.30
  4. Step 4: Simplify right side
    279,815.44x = 58,880,921,806.85
  5. Step 5: Solve for x
    x = 58,880,921,806.85/279,815.44
  6. Step 6: Final answer
    x = 210,427.71

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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.