Home / 349,021.05-522,498.18-215,471.88

Finding the Fourth Proportional to 349,021.05, 522,498.18 and 215,471.88

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Solution

The fourth proportional to 349,021.05, 522,498.18 and 215,471.88 is: 322,569.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,021.05 : 522,498.18 = 215,471.88 : x
  2. Step 2: Convert to fraction form
    349,021.05/522,498.18 = 215,471.88/x
  3. Step 3: Cross multiply
    349,021.05x = 522,498.18 × 215,471.88
  4. Step 4: Simplify right side
    349,021.05x = 112,583,665,141.18
  5. Step 5: Solve for x
    x = 112,583,665,141.18/349,021.05
  6. Step 6: Final answer
    x = 322,569.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.