Home / 384,788.42-531,004.10-215,022.54

Finding the Fourth Proportional to 384,788.42, 531,004.10 and 215,022.54

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Solution

The fourth proportional to 384,788.42, 531,004.10 and 215,022.54 is: 296,728.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,788.42 : 531,004.10 = 215,022.54 : x
  2. Step 2: Convert to fraction form
    384,788.42/531,004.10 = 215,022.54/x
  3. Step 3: Cross multiply
    384,788.42x = 531,004.10 × 215,022.54
  4. Step 4: Simplify right side
    384,788.42x = 114,177,849,257.30
  5. Step 5: Solve for x
    x = 114,177,849,257.30/384,788.42
  6. Step 6: Final answer
    x = 296,728.92

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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.