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Finding the Third Proportional to 58,664 and 128,587

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Solution

The third proportional to 58,664 and 128,587 is: 281,852.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,664 : 128,587 = 128,587 : x
  2. Step 2: Convert to fraction form
    58,664/128,587 = 128,587/x
  3. Step 3: Cross multiply
    58,664x = 128,587 × 128,587
  4. Step 4: Simplify right side
    58,664x = 16,534,616,569
  5. Step 5: Solve for x
    x = 16,534,616,569/58,664
  6. Step 6: Final answer
    x = 281,852.87

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.