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Finding the Third Proportional to 154,631.91 and 239,430.28

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Solution

The third proportional to 154,631.91 and 239,430.28 is: 370,731.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,631.91 : 239,430.28 = 239,430.28 : x
  2. Step 2: Convert to fraction form
    154,631.91/239,430.28 = 239,430.28/x
  3. Step 3: Cross multiply
    154,631.91x = 239,430.28 × 239,430.28
  4. Step 4: Simplify right side
    154,631.91x = 57,326,859,579.45
  5. Step 5: Solve for x
    x = 57,326,859,579.45/154,631.91
  6. Step 6: Final answer
    x = 370,731.12

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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.