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Finding the Third Proportional to 146,254.50 and 315,261

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Solution

The third proportional to 146,254.50 and 315,261 is: 679,565.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,254.50 : 315,261 = 315,261 : x
  2. Step 2: Convert to fraction form
    146,254.50/315,261 = 315,261/x
  3. Step 3: Cross multiply
    146,254.50x = 315,261 × 315,261
  4. Step 4: Simplify right side
    146,254.50x = 99,389,498,121
  5. Step 5: Solve for x
    x = 99,389,498,121/146,254.50
  6. Step 6: Final answer
    x = 679,565.40

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.