Home / 379,174.77-523,257.98-209,405.25

Finding the Fourth Proportional to 379,174.77, 523,257.98 and 209,405.25

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Solution

The fourth proportional to 379,174.77, 523,257.98 and 209,405.25 is: 288,977.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,174.77 : 523,257.98 = 209,405.25 : x
  2. Step 2: Convert to fraction form
    379,174.77/523,257.98 = 209,405.25/x
  3. Step 3: Cross multiply
    379,174.77x = 523,257.98 × 209,405.25
  4. Step 4: Simplify right side
    379,174.77x = 109,572,967,069.37
  5. Step 5: Solve for x
    x = 109,572,967,069.37/379,174.77
  6. Step 6: Final answer
    x = 288,977.47

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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.