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Finding the Third Proportional to 131,315.63 and 256,070.25

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Solution

The third proportional to 131,315.63 and 256,070.25 is: 499,346.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,315.63 : 256,070.25 = 256,070.25 : x
  2. Step 2: Convert to fraction form
    131,315.63/256,070.25 = 256,070.25/x
  3. Step 3: Cross multiply
    131,315.63x = 256,070.25 × 256,070.25
  4. Step 4: Simplify right side
    131,315.63x = 65,571,972,935.06
  5. Step 5: Solve for x
    x = 65,571,972,935.06/131,315.63
  6. Step 6: Final answer
    x = 499,346.31

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Why These Related Problems?

These problems maintain the same ratio (1.95) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.