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Finding the Third Proportional to 154,310 and 240,486

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Solution

The third proportional to 154,310 and 240,486 is: 374,787.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,310 : 240,486 = 240,486 : x
  2. Step 2: Convert to fraction form
    154,310/240,486 = 240,486/x
  3. Step 3: Cross multiply
    154,310x = 240,486 × 240,486
  4. Step 4: Simplify right side
    154,310x = 57,833,516,196
  5. Step 5: Solve for x
    x = 57,833,516,196/154,310
  6. Step 6: Final answer
    x = 374,787.87

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.