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Finding the Fourth Proportional to 269,652.96, 404,531.46 and 103,428

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Solution

The fourth proportional to 269,652.96, 404,531.46 and 103,428 is: 155,161.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,652.96 : 404,531.46 = 103,428 : x
  2. Step 2: Convert to fraction form
    269,652.96/404,531.46 = 103,428/x
  3. Step 3: Cross multiply
    269,652.96x = 404,531.46 × 103,428
  4. Step 4: Simplify right side
    269,652.96x = 41,839,879,844.88
  5. Step 5: Solve for x
    x = 41,839,879,844.88/269,652.96
  6. Step 6: Final answer
    x = 155,161.95

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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.