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Finding the Third Proportional to 155,514 and 326,692.50

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Solution

The third proportional to 155,514 and 326,692.50 is: 686,291.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,514 : 326,692.50 = 326,692.50 : x
  2. Step 2: Convert to fraction form
    155,514/326,692.50 = 326,692.50/x
  3. Step 3: Cross multiply
    155,514x = 326,692.50 × 326,692.50
  4. Step 4: Simplify right side
    155,514x = 106,727,989,556.25
  5. Step 5: Solve for x
    x = 106,727,989,556.25/155,514
  6. Step 6: Final answer
    x = 686,291.84

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.