Home / 397,839.45-549,029.04-216,563.57

Finding the Fourth Proportional to 397,839.45, 549,029.04 and 216,563.57

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Solution

The fourth proportional to 397,839.45, 549,029.04 and 216,563.57 is: 298,863.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,839.45 : 549,029.04 = 216,563.57 : x
  2. Step 2: Convert to fraction form
    397,839.45/549,029.04 = 216,563.57/x
  3. Step 3: Cross multiply
    397,839.45x = 549,029.04 × 216,563.57
  4. Step 4: Simplify right side
    397,839.45x = 118,899,690,525.96
  5. Step 5: Solve for x
    x = 118,899,690,525.96/397,839.45
  6. Step 6: Final answer
    x = 298,863.50

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1.5x scale

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.