Home / 382,309.75-527,588.09-212,543.88

Finding the Fourth Proportional to 382,309.75, 527,588.09 and 212,543.88

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Solution

The fourth proportional to 382,309.75, 527,588.09 and 212,543.88 is: 293,310.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,309.75 : 527,588.09 = 212,543.88 : x
  2. Step 2: Convert to fraction form
    382,309.75/527,588.09 = 212,543.88/x
  3. Step 3: Cross multiply
    382,309.75x = 527,588.09 × 212,543.88
  4. Step 4: Simplify right side
    382,309.75x = 112,135,619,690.39
  5. Step 5: Solve for x
    x = 112,135,619,690.39/382,309.75
  6. Step 6: Final answer
    x = 293,310.91

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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.