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Finding the Third Proportional to 78,325.50 and 165,580.50

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Solution

The third proportional to 78,325.50 and 165,580.50 is: 350,038.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,325.50 : 165,580.50 = 165,580.50 : x
  2. Step 2: Convert to fraction form
    78,325.50/165,580.50 = 165,580.50/x
  3. Step 3: Cross multiply
    78,325.50x = 165,580.50 × 165,580.50
  4. Step 4: Simplify right side
    78,325.50x = 27,416,901,980.25
  5. Step 5: Solve for x
    x = 27,416,901,980.25/78,325.50
  6. Step 6: Final answer
    x = 350,038.01

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.