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Finding the Third Proportional to 155,579 and 240,278.50

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Solution

The third proportional to 155,579 and 240,278.50 is: 371,089.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,579 : 240,278.50 = 240,278.50 : x
  2. Step 2: Convert to fraction form
    155,579/240,278.50 = 240,278.50/x
  3. Step 3: Cross multiply
    155,579x = 240,278.50 × 240,278.50
  4. Step 4: Simplify right side
    155,579x = 57,733,757,562.25
  5. Step 5: Solve for x
    x = 57,733,757,562.25/155,579
  6. Step 6: Final answer
    x = 371,089.66

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.