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Finding the Third Proportional to 156,313.55 and 318,151.55

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Solution

The third proportional to 156,313.55 and 318,151.55 is: 647,547.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,313.55 : 318,151.55 = 318,151.55 : x
  2. Step 2: Convert to fraction form
    156,313.55/318,151.55 = 318,151.55/x
  3. Step 3: Cross multiply
    156,313.55x = 318,151.55 × 318,151.55
  4. Step 4: Simplify right side
    156,313.55x = 101,220,406,778.96
  5. Step 5: Solve for x
    x = 101,220,406,778.96/156,313.55
  6. Step 6: Final answer
    x = 647,547.25

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.