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Finding the Fourth Proportional to 493,216.36, 680,637.54 and 266,861.80

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Solution

The fourth proportional to 493,216.36, 680,637.54 and 266,861.80 is: 368,268.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,216.36 : 680,637.54 = 266,861.80 : x
  2. Step 2: Convert to fraction form
    493,216.36/680,637.54 = 266,861.80/x
  3. Step 3: Cross multiply
    493,216.36x = 680,637.54 × 266,861.80
  4. Step 4: Simplify right side
    493,216.36x = 181,636,159,071.97
  5. Step 5: Solve for x
    x = 181,636,159,071.97/493,216.36
  6. Step 6: Final answer
    x = 368,268.72

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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.