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Finding the Third Proportional to 128,905.03 and 277,558.03

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Solution

The third proportional to 128,905.03 and 277,558.03 is: 597,637.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,905.03 : 277,558.03 = 277,558.03 : x
  2. Step 2: Convert to fraction form
    128,905.03/277,558.03 = 277,558.03/x
  3. Step 3: Cross multiply
    128,905.03x = 277,558.03 × 277,558.03
  4. Step 4: Simplify right side
    128,905.03x = 77,038,460,711.38
  5. Step 5: Solve for x
    x = 77,038,460,711.38/128,905.03
  6. Step 6: Final answer
    x = 597,637.35

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.