Home / 385,441.74-531,910.26-215,676

Finding the Fourth Proportional to 385,441.74, 531,910.26 and 215,676

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Solution

The fourth proportional to 385,441.74, 531,910.26 and 215,676 is: 297,633.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,441.74 : 531,910.26 = 215,676 : x
  2. Step 2: Convert to fraction form
    385,441.74/531,910.26 = 215,676/x
  3. Step 3: Cross multiply
    385,441.74x = 531,910.26 × 215,676
  4. Step 4: Simplify right side
    385,441.74x = 114,720,277,235.76
  5. Step 5: Solve for x
    x = 114,720,277,235.76/385,441.74
  6. Step 6: Final answer
    x = 297,633.25

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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.