Home / 397,854.07-549,045.62-216,571.21

Finding the Fourth Proportional to 397,854.07, 549,045.62 and 216,571.21

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Solution

The fourth proportional to 397,854.07, 549,045.62 and 216,571.21 is: 298,872.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,854.07 : 549,045.62 = 216,571.21 : x
  2. Step 2: Convert to fraction form
    397,854.07/549,045.62 = 216,571.21/x
  3. Step 3: Cross multiply
    397,854.07x = 549,045.62 × 216,571.21
  4. Step 4: Simplify right side
    397,854.07x = 118,907,474,268.60
  5. Step 5: Solve for x
    x = 118,907,474,268.60/397,854.07
  6. Step 6: Final answer
    x = 298,872.08

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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.