Home / 383,146.05-528,757.95-213,380.18

Finding the Fourth Proportional to 383,146.05, 528,757.95 and 213,380.18

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Solution

The fourth proportional to 383,146.05, 528,757.95 and 213,380.18 is: 294,473.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,146.05 : 528,757.95 = 213,380.18 : x
  2. Step 2: Convert to fraction form
    383,146.05/528,757.95 = 213,380.18/x
  3. Step 3: Cross multiply
    383,146.05x = 528,757.95 × 213,380.18
  4. Step 4: Simplify right side
    383,146.05x = 112,826,463,903.64
  5. Step 5: Solve for x
    x = 112,826,463,903.64/383,146.05
  6. Step 6: Final answer
    x = 294,473.78

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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.