Home / 397,917.34-549,109.13-216,625.50

Finding the Fourth Proportional to 397,917.34, 549,109.13 and 216,625.50

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Solution

The fourth proportional to 397,917.34, 549,109.13 and 216,625.50 is: 298,934.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,917.34 : 549,109.13 = 216,625.50 : x
  2. Step 2: Convert to fraction form
    397,917.34/549,109.13 = 216,625.50/x
  3. Step 3: Cross multiply
    397,917.34x = 549,109.13 × 216,625.50
  4. Step 4: Simplify right side
    397,917.34x = 118,951,038,757.69
  5. Step 5: Solve for x
    x = 118,951,038,757.69/397,917.34
  6. Step 6: Final answer
    x = 298,934.04

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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.