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Finding the Fourth Proportional to 243,666, 365,457.06 and 66,187.29

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Solution

The fourth proportional to 243,666, 365,457.06 and 66,187.29 is: 99,269.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,666 : 365,457.06 = 66,187.29 : x
  2. Step 2: Convert to fraction form
    243,666/365,457.06 = 66,187.29/x
  3. Step 3: Cross multiply
    243,666x = 365,457.06 × 66,187.29
  4. Step 4: Simplify right side
    243,666x = 24,188,612,412.77
  5. Step 5: Solve for x
    x = 24,188,612,412.77/243,666
  6. Step 6: Final answer
    x = 99,269.54

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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.