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Finding the Fourth Proportional to 200,274.72, 276,254.67 and 123,817.20

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Solution

The fourth proportional to 200,274.72, 276,254.67 and 123,817.20 is: 170,790.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,274.72 : 276,254.67 = 123,817.20 : x
  2. Step 2: Convert to fraction form
    200,274.72/276,254.67 = 123,817.20/x
  3. Step 3: Cross multiply
    200,274.72x = 276,254.67 × 123,817.20
  4. Step 4: Simplify right side
    200,274.72x = 34,205,079,726.32
  5. Step 5: Solve for x
    x = 34,205,079,726.32/200,274.72
  6. Step 6: Final answer
    x = 170,790.80

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1.5x scale

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.