Home / 384,887.43-531,123.12-212,795.37

Finding the Fourth Proportional to 384,887.43, 531,123.12 and 212,795.37

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Solution

The fourth proportional to 384,887.43, 531,123.12 and 212,795.37 is: 293,645.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,887.43 : 531,123.12 = 212,795.37 : x
  2. Step 2: Convert to fraction form
    384,887.43/531,123.12 = 212,795.37/x
  3. Step 3: Cross multiply
    384,887.43x = 531,123.12 × 212,795.37
  4. Step 4: Simplify right side
    384,887.43x = 113,020,540,835.95
  5. Step 5: Solve for x
    x = 113,020,540,835.95/384,887.43
  6. Step 6: Final answer
    x = 293,645.71

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1.5x scale

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.