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Finding the Fourth Proportional to 267,507.78, 401,040.09 and 208,604.58

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Solution

The fourth proportional to 267,507.78, 401,040.09 and 208,604.58 is: 312,734.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,507.78 : 401,040.09 = 208,604.58 : x
  2. Step 2: Convert to fraction form
    267,507.78/401,040.09 = 208,604.58/x
  3. Step 3: Cross multiply
    267,507.78x = 401,040.09 × 208,604.58
  4. Step 4: Simplify right side
    267,507.78x = 83,658,799,537.61
  5. Step 5: Solve for x
    x = 83,658,799,537.61/267,507.78
  6. Step 6: Final answer
    x = 312,734.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.