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Finding the Fourth Proportional to 200,116.62, 300,278.40 and 87,875.64

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Solution

The fourth proportional to 200,116.62, 300,278.40 and 87,875.64 is: 131,858.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,116.62 : 300,278.40 = 87,875.64 : x
  2. Step 2: Convert to fraction form
    200,116.62/300,278.40 = 87,875.64/x
  3. Step 3: Cross multiply
    200,116.62x = 300,278.40 × 87,875.64
  4. Step 4: Simplify right side
    200,116.62x = 26,387,156,578.18
  5. Step 5: Solve for x
    x = 26,387,156,578.18/200,116.62
  6. Step 6: Final answer
    x = 131,858.90

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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.