Home / 384,890.43-531,127.26-212,798.37

Finding the Fourth Proportional to 384,890.43, 531,127.26 and 212,798.37

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Solution

The fourth proportional to 384,890.43, 531,127.26 and 212,798.37 is: 293,649.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,890.43 : 531,127.26 = 212,798.37 : x
  2. Step 2: Convert to fraction form
    384,890.43/531,127.26 = 212,798.37/x
  3. Step 3: Cross multiply
    384,890.43x = 531,127.26 × 212,798.37
  4. Step 4: Simplify right side
    384,890.43x = 113,023,015,190.57
  5. Step 5: Solve for x
    x = 113,023,015,190.57/384,890.43
  6. Step 6: Final answer
    x = 293,649.85

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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.