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Finding the Fourth Proportional to 230,422.29, 345,633.48 and 72,663.09

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Solution

The fourth proportional to 230,422.29, 345,633.48 and 72,663.09 is: 108,994.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,422.29 : 345,633.48 = 72,663.09 : x
  2. Step 2: Convert to fraction form
    230,422.29/345,633.48 = 72,663.09/x
  3. Step 3: Cross multiply
    230,422.29x = 345,633.48 × 72,663.09
  4. Step 4: Simplify right side
    230,422.29x = 25,114,796,664.25
  5. Step 5: Solve for x
    x = 25,114,796,664.25/230,422.29
  6. Step 6: Final answer
    x = 108,994.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.