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Finding the Fourth Proportional to 267,405.22, 401,111.07 and 89,911.54

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Solution

The fourth proportional to 267,405.22, 401,111.07 and 89,911.54 is: 134,868.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,405.22 : 401,111.07 = 89,911.54 : x
  2. Step 2: Convert to fraction form
    267,405.22/401,111.07 = 89,911.54/x
  3. Step 3: Cross multiply
    267,405.22x = 401,111.07 × 89,911.54
  4. Step 4: Simplify right side
    267,405.22x = 36,064,514,014.75
  5. Step 5: Solve for x
    x = 36,064,514,014.75/267,405.22
  6. Step 6: Final answer
    x = 134,868.40

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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.