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Finding the Third Proportional to 253,255.50 and 392,017.50

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Solution

The third proportional to 253,255.50 and 392,017.50 is: 606,809.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,255.50 : 392,017.50 = 392,017.50 : x
  2. Step 2: Convert to fraction form
    253,255.50/392,017.50 = 392,017.50/x
  3. Step 3: Cross multiply
    253,255.50x = 392,017.50 × 392,017.50
  4. Step 4: Simplify right side
    253,255.50x = 153,677,720,306.25
  5. Step 5: Solve for x
    x = 153,677,720,306.25/253,255.50
  6. Step 6: Final answer
    x = 606,809.01

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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.