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Finding the Fourth Proportional to 250,347.71, 375,256.85 and 81,822.96

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Solution

The fourth proportional to 250,347.71, 375,256.85 and 81,822.96 is: 122,647.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,347.71 : 375,256.85 = 81,822.96 : x
  2. Step 2: Convert to fraction form
    250,347.71/375,256.85 = 81,822.96/x
  3. Step 3: Cross multiply
    250,347.71x = 375,256.85 × 81,822.96
  4. Step 4: Simplify right side
    250,347.71x = 30,704,626,278.42
  5. Step 5: Solve for x
    x = 30,704,626,278.42/250,347.71
  6. Step 6: Final answer
    x = 122,647.92

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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.