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Finding the Third Proportional to 154,631.50 and 239,429

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Solution

The third proportional to 154,631.50 and 239,429 is: 370,728.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,631.50 : 239,429 = 239,429 : x
  2. Step 2: Convert to fraction form
    154,631.50/239,429 = 239,429/x
  3. Step 3: Cross multiply
    154,631.50x = 239,429 × 239,429
  4. Step 4: Simplify right side
    154,631.50x = 57,326,246,041
  5. Step 5: Solve for x
    x = 57,326,246,041/154,631.50
  6. Step 6: Final answer
    x = 370,728.12

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.