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Finding the Third Proportional to 545.48 and 810.63

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Solution

The third proportional to 545.48 and 810.63 is: 1,204.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    545.48 : 810.63 = 810.63 : x
  2. Step 2: Convert to fraction form
    545.48/810.63 = 810.63/x
  3. Step 3: Cross multiply
    545.48x = 810.63 × 810.63
  4. Step 4: Simplify right side
    545.48x = 657,125.56
  5. Step 5: Solve for x
    x = 657,125.56/545.48
  6. Step 6: Final answer
    x = 1,204.66

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.