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Finding the Fourth Proportional to 200,378.66, 300,178.87 and 179,084.57

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Solution

The fourth proportional to 200,378.66, 300,178.87 and 179,084.57 is: 268,279.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,378.66 : 300,178.87 = 179,084.57 : x
  2. Step 2: Convert to fraction form
    200,378.66/300,178.87 = 179,084.57/x
  3. Step 3: Cross multiply
    200,378.66x = 300,178.87 × 179,084.57
  4. Step 4: Simplify right side
    200,378.66x = 53,757,401,908.43
  5. Step 5: Solve for x
    x = 53,757,401,908.43/200,378.66
  6. Step 6: Final answer
    x = 268,279.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.