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Finding the Third Proportional to 238,320 and 379,689.75

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Solution

The third proportional to 238,320 and 379,689.75 is: 604,919.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,320 : 379,689.75 = 379,689.75 : x
  2. Step 2: Convert to fraction form
    238,320/379,689.75 = 379,689.75/x
  3. Step 3: Cross multiply
    238,320x = 379,689.75 × 379,689.75
  4. Step 4: Simplify right side
    238,320x = 144,164,306,255.06
  5. Step 5: Solve for x
    x = 144,164,306,255.06/238,320
  6. Step 6: Final answer
    x = 604,919.04

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.