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Finding the Fourth Proportional to 379,481.37, 523,695.15 and 207,408.93

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Solution

The fourth proportional to 379,481.37, 523,695.15 and 207,408.93 is: 286,230.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,481.37 : 523,695.15 = 207,408.93 : x
  2. Step 2: Convert to fraction form
    379,481.37/523,695.15 = 207,408.93/x
  3. Step 3: Cross multiply
    379,481.37x = 523,695.15 × 207,408.93
  4. Step 4: Simplify right side
    379,481.37x = 108,619,050,707.69
  5. Step 5: Solve for x
    x = 108,619,050,707.69/379,481.37
  6. Step 6: Final answer
    x = 286,230.26

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1.5x scale

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.