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Finding the Third Proportional to 58,480 and 128,624

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Solution

The third proportional to 58,480 and 128,624 is: 282,902.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,480 : 128,624 = 128,624 : x
  2. Step 2: Convert to fraction form
    58,480/128,624 = 128,624/x
  3. Step 3: Cross multiply
    58,480x = 128,624 × 128,624
  4. Step 4: Simplify right side
    58,480x = 16,544,133,376
  5. Step 5: Solve for x
    x = 16,544,133,376/58,480
  6. Step 6: Final answer
    x = 282,902.42

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.