Home / 283,568.20-425,352.30-212,709.40

Finding the Fourth Proportional to 283,568.20, 425,352.30 and 212,709.40

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Solution

The fourth proportional to 283,568.20, 425,352.30 and 212,709.40 is: 319,064.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,568.20 : 425,352.30 = 212,709.40 : x
  2. Step 2: Convert to fraction form
    283,568.20/425,352.30 = 212,709.40/x
  3. Step 3: Cross multiply
    283,568.20x = 425,352.30 × 212,709.40
  4. Step 4: Simplify right side
    283,568.20x = 90,476,432,521.62
  5. Step 5: Solve for x
    x = 90,476,432,521.62/283,568.20
  6. Step 6: Final answer
    x = 319,064.10

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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.