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Finding the Fourth Proportional to 258,229.17, 356,389.65 and 145,051.92

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Solution

The fourth proportional to 258,229.17, 356,389.65 and 145,051.92 is: 200,190.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,229.17 : 356,389.65 = 145,051.92 : x
  2. Step 2: Convert to fraction form
    258,229.17/356,389.65 = 145,051.92/x
  3. Step 3: Cross multiply
    258,229.17x = 356,389.65 × 145,051.92
  4. Step 4: Simplify right side
    258,229.17x = 51,695,003,000.63
  5. Step 5: Solve for x
    x = 51,695,003,000.63/258,229.17
  6. Step 6: Final answer
    x = 200,190.41

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.