Home / 283,205.62-390,826.38-155,882.13

Finding the Fourth Proportional to 283,205.62, 390,826.38 and 155,882.13

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Solution

The fourth proportional to 283,205.62, 390,826.38 and 155,882.13 is: 215,118.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,205.62 : 390,826.38 = 155,882.13 : x
  2. Step 2: Convert to fraction form
    283,205.62/390,826.38 = 155,882.13/x
  3. Step 3: Cross multiply
    283,205.62x = 390,826.38 × 155,882.13
  4. Step 4: Simplify right side
    283,205.62x = 60,922,848,574.59
  5. Step 5: Solve for x
    x = 60,922,848,574.59/283,205.62
  6. Step 6: Final answer
    x = 215,118.78

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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.