Home / 372,120.16-513,671.89-263,790.71

Finding the Fourth Proportional to 372,120.16, 513,671.89 and 263,790.71

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Solution

The fourth proportional to 372,120.16, 513,671.89 and 263,790.71 is: 364,134.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,120.16 : 513,671.89 = 263,790.71 : x
  2. Step 2: Convert to fraction form
    372,120.16/513,671.89 = 263,790.71/x
  3. Step 3: Cross multiply
    372,120.16x = 513,671.89 × 263,790.71
  4. Step 4: Simplify right side
    372,120.16x = 135,501,872,570.14
  5. Step 5: Solve for x
    x = 135,501,872,570.14/372,120.16
  6. Step 6: Final answer
    x = 364,134.73

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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.