Home / 397,928.62-549,144.82-216,641.81

Finding the Fourth Proportional to 397,928.62, 549,144.82 and 216,641.81

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Solution

The fourth proportional to 397,928.62, 549,144.82 and 216,641.81 is: 298,967.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,928.62 : 549,144.82 = 216,641.81 : x
  2. Step 2: Convert to fraction form
    397,928.62/549,144.82 = 216,641.81/x
  3. Step 3: Cross multiply
    397,928.62x = 549,144.82 × 216,641.81
  4. Step 4: Simplify right side
    397,928.62x = 118,967,726,673.72
  5. Step 5: Solve for x
    x = 118,967,726,673.72/397,928.62
  6. Step 6: Final answer
    x = 298,967.50

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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.