Home / 384,824.48-531,081.36-215,072.16

Finding the Fourth Proportional to 384,824.48, 531,081.36 and 215,072.16

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Solution

The fourth proportional to 384,824.48, 531,081.36 and 215,072.16 is: 296,812.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,824.48 : 531,081.36 = 215,072.16 : x
  2. Step 2: Convert to fraction form
    384,824.48/531,081.36 = 215,072.16/x
  3. Step 3: Cross multiply
    384,824.48x = 531,081.36 × 215,072.16
  4. Step 4: Simplify right side
    384,824.48x = 114,220,815,230.94
  5. Step 5: Solve for x
    x = 114,220,815,230.94/384,824.48
  6. Step 6: Final answer
    x = 296,812.76

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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.