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Finding the Third Proportional to 119,139 and 256,584

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Solution

The third proportional to 119,139 and 256,584 is: 552,592.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,139 : 256,584 = 256,584 : x
  2. Step 2: Convert to fraction form
    119,139/256,584 = 256,584/x
  3. Step 3: Cross multiply
    119,139x = 256,584 × 256,584
  4. Step 4: Simplify right side
    119,139x = 65,835,349,056
  5. Step 5: Solve for x
    x = 65,835,349,056/119,139
  6. Step 6: Final answer
    x = 552,592.76

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.