Home / 382,993.12-528,551.44-213,223.52

Finding the Fourth Proportional to 382,993.12, 528,551.44 and 213,223.52

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Solution

The fourth proportional to 382,993.12, 528,551.44 and 213,223.52 is: 294,260.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,993.12 : 528,551.44 = 213,223.52 : x
  2. Step 2: Convert to fraction form
    382,993.12/528,551.44 = 213,223.52/x
  3. Step 3: Cross multiply
    382,993.12x = 528,551.44 × 213,223.52
  4. Step 4: Simplify right side
    382,993.12x = 112,699,598,537.87
  5. Step 5: Solve for x
    x = 112,699,598,537.87/382,993.12
  6. Step 6: Final answer
    x = 294,260.11

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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.