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Finding the Fourth Proportional to 231,230.16, 319,071.96 and 130,628.16

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Solution

The fourth proportional to 231,230.16, 319,071.96 and 130,628.16 is: 180,252.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,230.16 : 319,071.96 = 130,628.16 : x
  2. Step 2: Convert to fraction form
    231,230.16/319,071.96 = 130,628.16/x
  3. Step 3: Cross multiply
    231,230.16x = 319,071.96 × 130,628.16
  4. Step 4: Simplify right side
    231,230.16x = 41,679,783,042.39
  5. Step 5: Solve for x
    x = 41,679,783,042.39/231,230.16
  6. Step 6: Final answer
    x = 180,252.36

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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.