Home / 397,871.12-549,056.49-216,584.55

Finding the Fourth Proportional to 397,871.12, 549,056.49 and 216,584.55

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Solution

The fourth proportional to 397,871.12, 549,056.49 and 216,584.55 is: 298,883.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,871.12 : 549,056.49 = 216,584.55 : x
  2. Step 2: Convert to fraction form
    397,871.12/549,056.49 = 216,584.55/x
  3. Step 3: Cross multiply
    397,871.12x = 549,056.49 × 216,584.55
  4. Step 4: Simplify right side
    397,871.12x = 118,917,150,065.95
  5. Step 5: Solve for x
    x = 118,917,150,065.95/397,871.12
  6. Step 6: Final answer
    x = 298,883.60

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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.