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Finding the Third Proportional to 254,350.13 and 393,660

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Solution

The third proportional to 254,350.13 and 393,660 is: 609,271.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,350.13 : 393,660 = 393,660 : x
  2. Step 2: Convert to fraction form
    254,350.13/393,660 = 393,660/x
  3. Step 3: Cross multiply
    254,350.13x = 393,660 × 393,660
  4. Step 4: Simplify right side
    254,350.13x = 154,968,195,600
  5. Step 5: Solve for x
    x = 154,968,195,600/254,350.13
  6. Step 6: Final answer
    x = 609,271.16

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.