Home / 382,272.11-527,476.47-221,142.15

Finding the Fourth Proportional to 382,272.11, 527,476.47 and 221,142.15

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Solution

The fourth proportional to 382,272.11, 527,476.47 and 221,142.15 is: 305,142.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,272.11 : 527,476.47 = 221,142.15 : x
  2. Step 2: Convert to fraction form
    382,272.11/527,476.47 = 221,142.15/x
  3. Step 3: Cross multiply
    382,272.11x = 527,476.47 × 221,142.15
  4. Step 4: Simplify right side
    382,272.11x = 116,647,281,798.96
  5. Step 5: Solve for x
    x = 116,647,281,798.96/382,272.11
  6. Step 6: Final answer
    x = 305,142.01

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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.