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Finding the Third Proportional to 55,008 and 128,528

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Solution

The third proportional to 55,008 and 128,528 is: 300,309.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,008 : 128,528 = 128,528 : x
  2. Step 2: Convert to fraction form
    55,008/128,528 = 128,528/x
  3. Step 3: Cross multiply
    55,008x = 128,528 × 128,528
  4. Step 4: Simplify right side
    55,008x = 16,519,446,784
  5. Step 5: Solve for x
    x = 16,519,446,784/55,008
  6. Step 6: Final answer
    x = 300,309.90

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Why These Related Problems?

These problems maintain the same ratio (2.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.