Home / 384,862.72-531,109.22-215,096.85

Finding the Fourth Proportional to 384,862.72, 531,109.22 and 215,096.85

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Solution

The fourth proportional to 384,862.72, 531,109.22 and 215,096.85 is: 296,832.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,862.72 : 531,109.22 = 215,096.85 : x
  2. Step 2: Convert to fraction form
    384,862.72/531,109.22 = 215,096.85/x
  3. Step 3: Cross multiply
    384,862.72x = 531,109.22 × 215,096.85
  4. Step 4: Simplify right side
    384,862.72x = 114,239,920,227.96
  5. Step 5: Solve for x
    x = 114,239,920,227.96/384,862.72
  6. Step 6: Final answer
    x = 296,832.91

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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.