Home / 382,942.89-528,440.49-210,827.34

Finding the Fourth Proportional to 382,942.89, 528,440.49 and 210,827.34

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Solution

The fourth proportional to 382,942.89, 528,440.49 and 210,827.34 is: 290,930.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,942.89 : 528,440.49 = 210,827.34 : x
  2. Step 2: Convert to fraction form
    382,942.89/528,440.49 = 210,827.34/x
  3. Step 3: Cross multiply
    382,942.89x = 528,440.49 × 210,827.34
  4. Step 4: Simplify right side
    382,942.89x = 111,409,702,855.00
  5. Step 5: Solve for x
    x = 111,409,702,855.00/382,942.89
  6. Step 6: Final answer
    x = 290,930.33

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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.