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Finding the Fourth Proportional to 231,572.64, 319,630.32 and 131,028.96

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Solution

The fourth proportional to 231,572.64, 319,630.32 and 131,028.96 is: 180,853.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,572.64 : 319,630.32 = 131,028.96 : x
  2. Step 2: Convert to fraction form
    231,572.64/319,630.32 = 131,028.96/x
  3. Step 3: Cross multiply
    231,572.64x = 319,630.32 × 131,028.96
  4. Step 4: Simplify right side
    231,572.64x = 41,880,828,414.07
  5. Step 5: Solve for x
    x = 41,880,828,414.07/231,572.64
  6. Step 6: Final answer
    x = 180,853.96

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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.