Home / 384,935.85-531,190.17-212,843.79

Finding the Fourth Proportional to 384,935.85, 531,190.17 and 212,843.79

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Solution

The fourth proportional to 384,935.85, 531,190.17 and 212,843.79 is: 293,712.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,935.85 : 531,190.17 = 212,843.79 : x
  2. Step 2: Convert to fraction form
    384,935.85/531,190.17 = 212,843.79/x
  3. Step 3: Cross multiply
    384,935.85x = 531,190.17 × 212,843.79
  4. Step 4: Simplify right side
    384,935.85x = 113,060,528,993.54
  5. Step 5: Solve for x
    x = 113,060,528,993.54/384,935.85
  6. Step 6: Final answer
    x = 293,712.65

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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.