Home / 382,932.28-528,455.82-213,177.88

Finding the Fourth Proportional to 382,932.28, 528,455.82 and 213,177.88

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Solution

The fourth proportional to 382,932.28, 528,455.82 and 213,177.88 is: 294,190.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,932.28 : 528,455.82 = 213,177.88 : x
  2. Step 2: Convert to fraction form
    382,932.28/528,455.82 = 213,177.88/x
  3. Step 3: Cross multiply
    382,932.28x = 528,455.82 × 213,177.88
  4. Step 4: Simplify right side
    382,932.28x = 112,655,091,381.26
  5. Step 5: Solve for x
    x = 112,655,091,381.26/382,932.28
  6. Step 6: Final answer
    x = 294,190.64

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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.