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Finding the Fourth Proportional to 200,165.59, 300,248.59 and 81,836.93

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Solution

The fourth proportional to 200,165.59, 300,248.59 and 81,836.93 is: 122,755.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,165.59 : 300,248.59 = 81,836.93 : x
  2. Step 2: Convert to fraction form
    200,165.59/300,248.59 = 81,836.93/x
  3. Step 3: Cross multiply
    200,165.59x = 300,248.59 × 81,836.93
  4. Step 4: Simplify right side
    200,165.59x = 24,571,423,388.46
  5. Step 5: Solve for x
    x = 24,571,423,388.46/200,165.59
  6. Step 6: Final answer
    x = 122,755.48

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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.