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Finding the Fourth Proportional to 267,807.81, 401,714.01 and 68,128.38

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Solution

The fourth proportional to 267,807.81, 401,714.01 and 68,128.38 is: 102,193.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,807.81 : 401,714.01 = 68,128.38 : x
  2. Step 2: Convert to fraction form
    267,807.81/401,714.01 = 68,128.38/x
  3. Step 3: Cross multiply
    267,807.81x = 401,714.01 × 68,128.38
  4. Step 4: Simplify right side
    267,807.81x = 27,368,124,724.60
  5. Step 5: Solve for x
    x = 27,368,124,724.60/267,807.81
  6. Step 6: Final answer
    x = 102,193.15

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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.