Home / 397,829.75-549,016.72-216,553.50

Finding the Fourth Proportional to 397,829.75, 549,016.72 and 216,553.50

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Solution

The fourth proportional to 397,829.75, 549,016.72 and 216,553.50 is: 298,850.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,829.75 : 549,016.72 = 216,553.50 : x
  2. Step 2: Convert to fraction form
    397,829.75/549,016.72 = 216,553.50/x
  3. Step 3: Cross multiply
    397,829.75x = 549,016.72 × 216,553.50
  4. Step 4: Simplify right side
    397,829.75x = 118,891,491,733.14
  5. Step 5: Solve for x
    x = 118,891,491,733.14/397,829.75
  6. Step 6: Final answer
    x = 298,850.18

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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.