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Finding the Fourth Proportional to 240,364.80, 331,689.97 and 131,447.64

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Solution

The fourth proportional to 240,364.80, 331,689.97 and 131,447.64 is: 181,390.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,364.80 : 331,689.97 = 131,447.64 : x
  2. Step 2: Convert to fraction form
    240,364.80/331,689.97 = 131,447.64/x
  3. Step 3: Cross multiply
    240,364.80x = 331,689.97 × 131,447.64
  4. Step 4: Simplify right side
    240,364.80x = 43,599,865,176.32
  5. Step 5: Solve for x
    x = 43,599,865,176.32/240,364.80
  6. Step 6: Final answer
    x = 181,390.39

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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.