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Finding the Third Proportional to 310,621.50 and 425,060.50

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Solution

The third proportional to 310,621.50 and 425,060.50 is: 581,661.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,621.50 : 425,060.50 = 425,060.50 : x
  2. Step 2: Convert to fraction form
    310,621.50/425,060.50 = 425,060.50/x
  3. Step 3: Cross multiply
    310,621.50x = 425,060.50 × 425,060.50
  4. Step 4: Simplify right side
    310,621.50x = 180,676,428,660.25
  5. Step 5: Solve for x
    x = 180,676,428,660.25/310,621.50
  6. Step 6: Final answer
    x = 581,661.05

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.