Home / 286,101.13-394,779.24-171,352.90

Finding the Fourth Proportional to 286,101.13, 394,779.24 and 171,352.90

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Solution

The fourth proportional to 286,101.13, 394,779.24 and 171,352.90 is: 236,442.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,101.13 : 394,779.24 = 171,352.90 : x
  2. Step 2: Convert to fraction form
    286,101.13/394,779.24 = 171,352.90/x
  3. Step 3: Cross multiply
    286,101.13x = 394,779.24 × 171,352.90
  4. Step 4: Simplify right side
    286,101.13x = 67,646,567,633.80
  5. Step 5: Solve for x
    x = 67,646,567,633.80/286,101.13
  6. Step 6: Final answer
    x = 236,442.85

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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.