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Finding the Fourth Proportional to 240,435.66, 331,825.86 and 138,464.94

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Solution

The fourth proportional to 240,435.66, 331,825.86 and 138,464.94 is: 191,095.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,435.66 : 331,825.86 = 138,464.94 : x
  2. Step 2: Convert to fraction form
    240,435.66/331,825.86 = 138,464.94/x
  3. Step 3: Cross multiply
    240,435.66x = 331,825.86 × 138,464.94
  4. Step 4: Simplify right side
    240,435.66x = 45,946,247,795.35
  5. Step 5: Solve for x
    x = 45,946,247,795.35/240,435.66
  6. Step 6: Final answer
    x = 191,095.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.