Home / 382,787.88-528,247.28-213,022.14

Finding the Fourth Proportional to 382,787.88, 528,247.28 and 213,022.14

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Solution

The fourth proportional to 382,787.88, 528,247.28 and 213,022.14 is: 293,970.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,787.88 : 528,247.28 = 213,022.14 : x
  2. Step 2: Convert to fraction form
    382,787.88/528,247.28 = 213,022.14/x
  3. Step 3: Cross multiply
    382,787.88x = 528,247.28 × 213,022.14
  4. Step 4: Simplify right side
    382,787.88x = 112,528,366,034.78
  5. Step 5: Solve for x
    x = 112,528,366,034.78/382,787.88
  6. Step 6: Final answer
    x = 293,970.56

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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.