Home / 379,261.33-523,379.04-209,495.45

Finding the Fourth Proportional to 379,261.33, 523,379.04 and 209,495.45

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Solution

The fourth proportional to 379,261.33, 523,379.04 and 209,495.45 is: 289,102.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,261.33 : 523,379.04 = 209,495.45 : x
  2. Step 2: Convert to fraction form
    379,261.33/523,379.04 = 209,495.45/x
  3. Step 3: Cross multiply
    379,261.33x = 523,379.04 × 209,495.45
  4. Step 4: Simplify right side
    379,261.33x = 109,645,528,028.21
  5. Step 5: Solve for x
    x = 109,645,528,028.21/379,261.33
  6. Step 6: Final answer
    x = 289,102.84

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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.