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Finding the Third Proportional to 72,179 and 157,461

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Solution

The third proportional to 72,179 and 157,461 is: 343,506.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,179 : 157,461 = 157,461 : x
  2. Step 2: Convert to fraction form
    72,179/157,461 = 157,461/x
  3. Step 3: Cross multiply
    72,179x = 157,461 × 157,461
  4. Step 4: Simplify right side
    72,179x = 24,793,966,521
  5. Step 5: Solve for x
    x = 24,793,966,521/72,179
  6. Step 6: Final answer
    x = 343,506.65

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.