Home / 393,022.82-589,658.87-140,297.76

Finding the Fourth Proportional to 393,022.82, 589,658.87 and 140,297.76

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Solution

The fourth proportional to 393,022.82, 589,658.87 and 140,297.76 is: 210,491.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,022.82 : 589,658.87 = 140,297.76 : x
  2. Step 2: Convert to fraction form
    393,022.82/589,658.87 = 140,297.76/x
  3. Step 3: Cross multiply
    393,022.82x = 589,658.87 × 140,297.76
  4. Step 4: Simplify right side
    393,022.82x = 82,727,817,923.64
  5. Step 5: Solve for x
    x = 82,727,817,923.64/393,022.82
  6. Step 6: Final answer
    x = 210,491.13

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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.