Home / 231,109.40-346,779.30-131,346.20

Finding the Fourth Proportional to 231,109.40, 346,779.30 and 131,346.20

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Solution

The fourth proportional to 231,109.40, 346,779.30 and 131,346.20 is: 197,084.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,109.40 : 346,779.30 = 131,346.20 : x
  2. Step 2: Convert to fraction form
    231,109.40/346,779.30 = 131,346.20/x
  3. Step 3: Cross multiply
    231,109.40x = 346,779.30 × 131,346.20
  4. Step 4: Simplify right side
    231,109.40x = 45,548,143,293.66
  5. Step 5: Solve for x
    x = 45,548,143,293.66/231,109.40
  6. Step 6: Final answer
    x = 197,084.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.