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Finding the Third Proportional to 29,840 and 64,352

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Solution

The third proportional to 29,840 and 64,352 is: 138,779.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,840 : 64,352 = 64,352 : x
  2. Step 2: Convert to fraction form
    29,840/64,352 = 64,352/x
  3. Step 3: Cross multiply
    29,840x = 64,352 × 64,352
  4. Step 4: Simplify right side
    29,840x = 4,141,179,904
  5. Step 5: Solve for x
    x = 4,141,179,904/29,840
  6. Step 6: Final answer
    x = 138,779.49

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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.