Home / 382,995.12-528,554.20-213,225.52

Finding the Fourth Proportional to 382,995.12, 528,554.20 and 213,225.52

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Solution

The fourth proportional to 382,995.12, 528,554.20 and 213,225.52 is: 294,262.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,995.12 : 528,554.20 = 213,225.52 : x
  2. Step 2: Convert to fraction form
    382,995.12/528,554.20 = 213,225.52/x
  3. Step 3: Cross multiply
    382,995.12x = 528,554.20 × 213,225.52
  4. Step 4: Simplify right side
    382,995.12x = 112,701,244,143.18
  5. Step 5: Solve for x
    x = 112,701,244,143.18/382,995.12
  6. Step 6: Final answer
    x = 294,262.87

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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.