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Finding the Third Proportional to 72,458.72 and 155,628.84

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Solution

The third proportional to 72,458.72 and 155,628.84 is: 334,263.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,458.72 : 155,628.84 = 155,628.84 : x
  2. Step 2: Convert to fraction form
    72,458.72/155,628.84 = 155,628.84/x
  3. Step 3: Cross multiply
    72,458.72x = 155,628.84 × 155,628.84
  4. Step 4: Simplify right side
    72,458.72x = 24,220,337,006.96
  5. Step 5: Solve for x
    x = 24,220,337,006.96/72,458.72
  6. Step 6: Final answer
    x = 334,263.94

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.