Home / 393,913.32-543,619.94-215,064.04

Finding the Fourth Proportional to 393,913.32, 543,619.94 and 215,064.04

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Solution

The fourth proportional to 393,913.32, 543,619.94 and 215,064.04 is: 296,799.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,913.32 : 543,619.94 = 215,064.04 : x
  2. Step 2: Convert to fraction form
    393,913.32/543,619.94 = 215,064.04/x
  3. Step 3: Cross multiply
    393,913.32x = 543,619.94 × 215,064.04
  4. Step 4: Simplify right side
    393,913.32x = 116,913,100,520.96
  5. Step 5: Solve for x
    x = 116,913,100,520.96/393,913.32
  6. Step 6: Final answer
    x = 296,799.05

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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.