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Finding the Fourth Proportional to 200,062.85, 300,092.67 and 81,651.15

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Solution

The fourth proportional to 200,062.85, 300,092.67 and 81,651.15 is: 122,476.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,062.85 : 300,092.67 = 81,651.15 : x
  2. Step 2: Convert to fraction form
    200,062.85/300,092.67 = 81,651.15/x
  3. Step 3: Cross multiply
    200,062.85x = 300,092.67 × 81,651.15
  4. Step 4: Simplify right side
    200,062.85x = 24,502,911,612.07
  5. Step 5: Solve for x
    x = 24,502,911,612.07/200,062.85
  6. Step 6: Final answer
    x = 122,476.07

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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.