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Finding the Third Proportional to 147,498 and 221,391

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Solution

The third proportional to 147,498 and 221,391 is: 332,302.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,498 : 221,391 = 221,391 : x
  2. Step 2: Convert to fraction form
    147,498/221,391 = 221,391/x
  3. Step 3: Cross multiply
    147,498x = 221,391 × 221,391
  4. Step 4: Simplify right side
    147,498x = 49,013,974,881
  5. Step 5: Solve for x
    x = 49,013,974,881/147,498
  6. Step 6: Final answer
    x = 332,302.64

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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.