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Finding the Fourth Proportional to 252,481, 348,434.90 and 145,084.72

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Solution

The fourth proportional to 252,481, 348,434.90 and 145,084.72 is: 200,223.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,481 : 348,434.90 = 145,084.72 : x
  2. Step 2: Convert to fraction form
    252,481/348,434.90 = 145,084.72/x
  3. Step 3: Cross multiply
    252,481x = 348,434.90 × 145,084.72
  4. Step 4: Simplify right side
    252,481x = 50,552,579,904.73
  5. Step 5: Solve for x
    x = 50,552,579,904.73/252,481
  6. Step 6: Final answer
    x = 200,223.30

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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.