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Finding the Fourth Proportional to 231,701.50, 319,752.93 and 131,099.50

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Solution

The fourth proportional to 231,701.50, 319,752.93 and 131,099.50 is: 180,920.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,701.50 : 319,752.93 = 131,099.50 : x
  2. Step 2: Convert to fraction form
    231,701.50/319,752.93 = 131,099.50/x
  3. Step 3: Cross multiply
    231,701.50x = 319,752.93 × 131,099.50
  4. Step 4: Simplify right side
    231,701.50x = 41,919,449,246.54
  5. Step 5: Solve for x
    x = 41,919,449,246.54/231,701.50
  6. Step 6: Final answer
    x = 180,920.06

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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.