Home / 384,863.10-531,109.74-215,097.22

Finding the Fourth Proportional to 384,863.10, 531,109.74 and 215,097.22

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Solution

The fourth proportional to 384,863.10, 531,109.74 and 215,097.22 is: 296,833.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,863.10 : 531,109.74 = 215,097.22 : x
  2. Step 2: Convert to fraction form
    384,863.10/531,109.74 = 215,097.22/x
  3. Step 3: Cross multiply
    384,863.10x = 531,109.74 × 215,097.22
  4. Step 4: Simplify right side
    384,863.10x = 114,240,228,588.92
  5. Step 5: Solve for x
    x = 114,240,228,588.92/384,863.10
  6. Step 6: Final answer
    x = 296,833.42

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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.