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Finding the Third Proportional to 266,556 and 403,009.50

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Solution

The third proportional to 266,556 and 403,009.50 is: 609,315.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,556 : 403,009.50 = 403,009.50 : x
  2. Step 2: Convert to fraction form
    266,556/403,009.50 = 403,009.50/x
  3. Step 3: Cross multiply
    266,556x = 403,009.50 × 403,009.50
  4. Step 4: Simplify right side
    266,556x = 162,416,657,090.25
  5. Step 5: Solve for x
    x = 162,416,657,090.25/266,556
  6. Step 6: Final answer
    x = 609,315.33

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.