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Finding the Fourth Proportional to 347,757.81, 520,866.02 and 267,202.85

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Solution

The fourth proportional to 347,757.81, 520,866.02 and 267,202.85 is: 400,212.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,757.81 : 520,866.02 = 267,202.85 : x
  2. Step 2: Convert to fraction form
    347,757.81/520,866.02 = 267,202.85/x
  3. Step 3: Cross multiply
    347,757.81x = 520,866.02 × 267,202.85
  4. Step 4: Simplify right side
    347,757.81x = 139,176,887,271.14
  5. Step 5: Solve for x
    x = 139,176,887,271.14/347,757.81
  6. Step 6: Final answer
    x = 400,212.11

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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.