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Finding the Fourth Proportional to 338,353.46, 507,490.67 and 135,941.37

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Solution

The fourth proportional to 338,353.46, 507,490.67 and 135,941.37 is: 203,896.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,353.46 : 507,490.67 = 135,941.37 : x
  2. Step 2: Convert to fraction form
    338,353.46/507,490.67 = 135,941.37/x
  3. Step 3: Cross multiply
    338,353.46x = 507,490.67 × 135,941.37
  4. Step 4: Simplify right side
    338,353.46x = 68,988,975,378.78
  5. Step 5: Solve for x
    x = 68,988,975,378.78/338,353.46
  6. Step 6: Final answer
    x = 203,896.17

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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.