Home / 393,904.91-591,006.28-154,190.14

Finding the Fourth Proportional to 393,904.91, 591,006.28 and 154,190.14

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Solution

The fourth proportional to 393,904.91, 591,006.28 and 154,190.14 is: 231,343.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,904.91 : 591,006.28 = 154,190.14 : x
  2. Step 2: Convert to fraction form
    393,904.91/591,006.28 = 154,190.14/x
  3. Step 3: Cross multiply
    393,904.91x = 591,006.28 × 154,190.14
  4. Step 4: Simplify right side
    393,904.91x = 91,127,338,134.18
  5. Step 5: Solve for x
    x = 91,127,338,134.18/393,904.91
  6. Step 6: Final answer
    x = 231,343.49

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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.