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Finding the Fourth Proportional to 494,760.22, 742,171.11 and 139,801.48

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Solution

The fourth proportional to 494,760.22, 742,171.11 and 139,801.48 is: 209,710.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,760.22 : 742,171.11 = 139,801.48 : x
  2. Step 2: Convert to fraction form
    494,760.22/742,171.11 = 139,801.48/x
  3. Step 3: Cross multiply
    494,760.22x = 742,171.11 × 139,801.48
  4. Step 4: Simplify right side
    494,760.22x = 103,756,619,591.24
  5. Step 5: Solve for x
    x = 103,756,619,591.24/494,760.22
  6. Step 6: Final answer
    x = 209,710.92

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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.