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Finding the Fourth Proportional to 384,805.44, 531,032.22 and 215,039.57

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Solution

The fourth proportional to 384,805.44, 531,032.22 and 215,039.57 is: 296,755.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,805.44 : 531,032.22 = 215,039.57 : x
  2. Step 2: Convert to fraction form
    384,805.44/531,032.22 = 215,039.57/x
  3. Step 3: Cross multiply
    384,805.44x = 531,032.22 × 215,039.57
  4. Step 4: Simplify right side
    384,805.44x = 114,192,937,589.78
  5. Step 5: Solve for x
    x = 114,192,937,589.78/384,805.44
  6. Step 6: Final answer
    x = 296,755.00

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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.