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Finding the Third Proportional to 315,343.13 and 424,900.69

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Solution

The third proportional to 315,343.13 and 424,900.69 is: 572,521.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,343.13 : 424,900.69 = 424,900.69 : x
  2. Step 2: Convert to fraction form
    315,343.13/424,900.69 = 424,900.69/x
  3. Step 3: Cross multiply
    315,343.13x = 424,900.69 × 424,900.69
  4. Step 4: Simplify right side
    315,343.13x = 180,540,594,237.97
  5. Step 5: Solve for x
    x = 180,540,594,237.97/315,343.13
  6. Step 6: Final answer
    x = 572,521.10

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.