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Finding the Fourth Proportional to 351,718.52, 527,570.22 and 85,480.52

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Solution

The fourth proportional to 351,718.52, 527,570.22 and 85,480.52 is: 128,218.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,718.52 : 527,570.22 = 85,480.52 : x
  2. Step 2: Convert to fraction form
    351,718.52/527,570.22 = 85,480.52/x
  3. Step 3: Cross multiply
    351,718.52x = 527,570.22 × 85,480.52
  4. Step 4: Simplify right side
    351,718.52x = 45,096,976,742.11
  5. Step 5: Solve for x
    x = 45,096,976,742.11/351,718.52
  6. Step 6: Final answer
    x = 128,218.94

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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.