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Finding the Third Proportional to 72,457 and 155,532

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Solution

The third proportional to 72,457 and 155,532 is: 333,855.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,457 : 155,532 = 155,532 : x
  2. Step 2: Convert to fraction form
    72,457/155,532 = 155,532/x
  3. Step 3: Cross multiply
    72,457x = 155,532 × 155,532
  4. Step 4: Simplify right side
    72,457x = 24,190,203,024
  5. Step 5: Solve for x
    x = 24,190,203,024/72,457
  6. Step 6: Final answer
    x = 333,855.98

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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.