Home / 384,450.26-530,539.20-212,380.02

Finding the Fourth Proportional to 384,450.26, 530,539.20 and 212,380.02

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Solution

The fourth proportional to 384,450.26, 530,539.20 and 212,380.02 is: 293,083.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,450.26 : 530,539.20 = 212,380.02 : x
  2. Step 2: Convert to fraction form
    384,450.26/530,539.20 = 212,380.02/x
  3. Step 3: Cross multiply
    384,450.26x = 530,539.20 × 212,380.02
  4. Step 4: Simplify right side
    384,450.26x = 112,675,925,906.78
  5. Step 5: Solve for x
    x = 112,675,925,906.78/384,450.26
  6. Step 6: Final answer
    x = 293,083.24

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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.