Home / 331,109.70-456,917.88-187,866.66

Finding the Fourth Proportional to 331,109.70, 456,917.88 and 187,866.66

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Solution

The fourth proportional to 331,109.70, 456,917.88 and 187,866.66 is: 259,248.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,109.70 : 456,917.88 = 187,866.66 : x
  2. Step 2: Convert to fraction form
    331,109.70/456,917.88 = 187,866.66/x
  3. Step 3: Cross multiply
    331,109.70x = 456,917.88 × 187,866.66
  4. Step 4: Simplify right side
    331,109.70x = 85,839,636,009.88
  5. Step 5: Solve for x
    x = 85,839,636,009.88/331,109.70
  6. Step 6: Final answer
    x = 259,248.33

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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.