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Finding the Fourth Proportional to 397,745.76, 549,163.75 and 372,336.24

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Solution

The fourth proportional to 397,745.76, 549,163.75 and 372,336.24 is: 514,081.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,745.76 : 549,163.75 = 372,336.24 : x
  2. Step 2: Convert to fraction form
    397,745.76/549,163.75 = 372,336.24/x
  3. Step 3: Cross multiply
    397,745.76x = 549,163.75 × 372,336.24
  4. Step 4: Simplify right side
    397,745.76x = 204,473,567,645.95
  5. Step 5: Solve for x
    x = 204,473,567,645.95/397,745.76
  6. Step 6: Final answer
    x = 514,081.08

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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.