Home / 240,316.26-331,638.15-131,421.09

Finding the Fourth Proportional to 240,316.26, 331,638.15 and 131,421.09

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Solution

The fourth proportional to 240,316.26, 331,638.15 and 131,421.09 is: 181,362.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,316.26 : 331,638.15 = 131,421.09 : x
  2. Step 2: Convert to fraction form
    240,316.26/331,638.15 = 131,421.09/x
  3. Step 3: Cross multiply
    240,316.26x = 331,638.15 × 131,421.09
  4. Step 4: Simplify right side
    240,316.26x = 43,584,247,158.58
  5. Step 5: Solve for x
    x = 43,584,247,158.58/240,316.26
  6. Step 6: Final answer
    x = 181,362.04

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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.