Home / 379,260.64-523,378.09-209,494.77

Finding the Fourth Proportional to 379,260.64, 523,378.09 and 209,494.77

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Solution

The fourth proportional to 379,260.64, 523,378.09 and 209,494.77 is: 289,101.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,260.64 : 523,378.09 = 209,494.77 : x
  2. Step 2: Convert to fraction form
    379,260.64/523,378.09 = 209,494.77/x
  3. Step 3: Cross multiply
    379,260.64x = 523,378.09 × 209,494.77
  4. Step 4: Simplify right side
    379,260.64x = 109,644,972,587.59
  5. Step 5: Solve for x
    x = 109,644,972,587.59/379,260.64
  6. Step 6: Final answer
    x = 289,101.90

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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.