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Finding the Fourth Proportional to 258,673.02, 356,965.11 and 145,495.50

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Solution

The fourth proportional to 258,673.02, 356,965.11 and 145,495.50 is: 200,781.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,673.02 : 356,965.11 = 145,495.50 : x
  2. Step 2: Convert to fraction form
    258,673.02/356,965.11 = 145,495.50/x
  3. Step 3: Cross multiply
    258,673.02x = 356,965.11 × 145,495.50
  4. Step 4: Simplify right side
    258,673.02x = 51,936,817,162.01
  5. Step 5: Solve for x
    x = 51,936,817,162.01/258,673.02
  6. Step 6: Final answer
    x = 200,781.73

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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.