Home / 331,281.78-457,153.11-188,022.75

Finding the Fourth Proportional to 331,281.78, 457,153.11 and 188,022.75

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Solution

The fourth proportional to 331,281.78, 457,153.11 and 188,022.75 is: 259,462.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,281.78 : 457,153.11 = 188,022.75 : x
  2. Step 2: Convert to fraction form
    331,281.78/457,153.11 = 188,022.75/x
  3. Step 3: Cross multiply
    331,281.78x = 457,153.11 × 188,022.75
  4. Step 4: Simplify right side
    331,281.78x = 85,955,184,913.25
  5. Step 5: Solve for x
    x = 85,955,184,913.25/331,281.78
  6. Step 6: Final answer
    x = 259,462.46

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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.