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Finding the Fourth Proportional to 231,624.62, 319,638.93 and 131,022.62

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Solution

The fourth proportional to 231,624.62, 319,638.93 and 131,022.62 is: 180,809.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,624.62 : 319,638.93 = 131,022.62 : x
  2. Step 2: Convert to fraction form
    231,624.62/319,638.93 = 131,022.62/x
  3. Step 3: Cross multiply
    231,624.62x = 319,638.93 × 131,022.62
  4. Step 4: Simplify right side
    231,624.62x = 41,879,930,062.60
  5. Step 5: Solve for x
    x = 41,879,930,062.60/231,624.62
  6. Step 6: Final answer
    x = 180,809.49

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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.