Home / 397,429.86-596,018.34-131,140.74

Finding the Fourth Proportional to 397,429.86, 596,018.34 and 131,140.74

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Solution

The fourth proportional to 397,429.86, 596,018.34 and 131,140.74 is: 196,669.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,429.86 : 596,018.34 = 131,140.74 : x
  2. Step 2: Convert to fraction form
    397,429.86/596,018.34 = 131,140.74/x
  3. Step 3: Cross multiply
    397,429.86x = 596,018.34 × 131,140.74
  4. Step 4: Simplify right side
    397,429.86x = 78,162,286,161.17
  5. Step 5: Solve for x
    x = 78,162,286,161.17/397,429.86
  6. Step 6: Final answer
    x = 196,669.39

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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.