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Finding the Third Proportional to 245,630 and 360,387

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Solution

The third proportional to 245,630 and 360,387 is: 528,757.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,630 : 360,387 = 360,387 : x
  2. Step 2: Convert to fraction form
    245,630/360,387 = 360,387/x
  3. Step 3: Cross multiply
    245,630x = 360,387 × 360,387
  4. Step 4: Simplify right side
    245,630x = 129,878,789,769
  5. Step 5: Solve for x
    x = 129,878,789,769/245,630
  6. Step 6: Final answer
    x = 528,757.85

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.