Home / 331,141.31-457,038-187,914.68

Finding the Fourth Proportional to 331,141.31, 457,038 and 187,914.68

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Solution

The fourth proportional to 331,141.31, 457,038 and 187,914.68 is: 259,358.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,141.31 : 457,038 = 187,914.68 : x
  2. Step 2: Convert to fraction form
    331,141.31/457,038 = 187,914.68/x
  3. Step 3: Cross multiply
    331,141.31x = 457,038 × 187,914.68
  4. Step 4: Simplify right side
    331,141.31x = 85,884,149,517.84
  5. Step 5: Solve for x
    x = 85,884,149,517.84/331,141.31
  6. Step 6: Final answer
    x = 259,358.00

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1.5x scale

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.