Home / 279,939.96-386,329.26-152,622.84

Finding the Fourth Proportional to 279,939.96, 386,329.26 and 152,622.84

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Solution

The fourth proportional to 279,939.96, 386,329.26 and 152,622.84 is: 210,626.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,939.96 : 386,329.26 = 152,622.84 : x
  2. Step 2: Convert to fraction form
    279,939.96/386,329.26 = 152,622.84/x
  3. Step 3: Cross multiply
    279,939.96x = 386,329.26 × 152,622.84
  4. Step 4: Simplify right side
    279,939.96x = 58,962,668,836.30
  5. Step 5: Solve for x
    x = 58,962,668,836.30/279,939.96
  6. Step 6: Final answer
    x = 210,626.12

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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.