Home / 384,942.17-531,231.95-215,183.45

Finding the Fourth Proportional to 384,942.17, 531,231.95 and 215,183.45

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Solution

The fourth proportional to 384,942.17, 531,231.95 and 215,183.45 is: 296,959.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,942.17 : 531,231.95 = 215,183.45 : x
  2. Step 2: Convert to fraction form
    384,942.17/531,231.95 = 215,183.45/x
  3. Step 3: Cross multiply
    384,942.17x = 531,231.95 × 215,183.45
  4. Step 4: Simplify right side
    384,942.17x = 114,312,322,675.31
  5. Step 5: Solve for x
    x = 114,312,322,675.31/384,942.17
  6. Step 6: Final answer
    x = 296,959.73

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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.