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Finding the Fourth Proportional to 287,314.77, 396,494.36 and 166,526.12

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Solution

The fourth proportional to 287,314.77, 396,494.36 and 166,526.12 is: 229,806.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,314.77 : 396,494.36 = 166,526.12 : x
  2. Step 2: Convert to fraction form
    287,314.77/396,494.36 = 166,526.12/x
  3. Step 3: Cross multiply
    287,314.77x = 396,494.36 × 166,526.12
  4. Step 4: Simplify right side
    287,314.77x = 66,026,665,390.21
  5. Step 5: Solve for x
    x = 66,026,665,390.21/287,314.77
  6. Step 6: Final answer
    x = 229,806.03

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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.