Home / 397,427.86-596,015.34-131,138.74

Finding the Fourth Proportional to 397,427.86, 596,015.34 and 131,138.74

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Solution

The fourth proportional to 397,427.86, 596,015.34 and 131,138.74 is: 196,666.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,427.86 : 596,015.34 = 131,138.74 : x
  2. Step 2: Convert to fraction form
    397,427.86/596,015.34 = 131,138.74/x
  3. Step 3: Cross multiply
    397,427.86x = 596,015.34 × 131,138.74
  4. Step 4: Simplify right side
    397,427.86x = 78,160,700,708.27
  5. Step 5: Solve for x
    x = 78,160,700,708.27/397,427.86
  6. Step 6: Final answer
    x = 196,666.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.