Home / 384,904.68-531,179.46-215,139.12

Finding the Fourth Proportional to 384,904.68, 531,179.46 and 215,139.12

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Solution

The fourth proportional to 384,904.68, 531,179.46 and 215,139.12 is: 296,898.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,904.68 : 531,179.46 = 215,139.12 : x
  2. Step 2: Convert to fraction form
    384,904.68/531,179.46 = 215,139.12/x
  3. Step 3: Cross multiply
    384,904.68x = 531,179.46 × 215,139.12
  4. Step 4: Simplify right side
    384,904.68x = 114,277,481,586.48
  5. Step 5: Solve for x
    x = 114,277,481,586.48/384,904.68
  6. Step 6: Final answer
    x = 296,898.13

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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.