Home / 379,023.55-523,052.85-209,257.69

Finding the Fourth Proportional to 379,023.55, 523,052.85 and 209,257.69

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Solution

The fourth proportional to 379,023.55, 523,052.85 and 209,257.69 is: 288,775.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,023.55 : 523,052.85 = 209,257.69 : x
  2. Step 2: Convert to fraction form
    379,023.55/523,052.85 = 209,257.69/x
  3. Step 3: Cross multiply
    379,023.55x = 523,052.85 × 209,257.69
  4. Step 4: Simplify right side
    379,023.55x = 109,452,831,138.92
  5. Step 5: Solve for x
    x = 109,452,831,138.92/379,023.55
  6. Step 6: Final answer
    x = 288,775.81

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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.