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Finding the Fourth Proportional to 287,402.95, 396,616.18 and 166,614.26

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Solution

The fourth proportional to 287,402.95, 396,616.18 and 166,614.26 is: 229,927.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,402.95 : 396,616.18 = 166,614.26 : x
  2. Step 2: Convert to fraction form
    287,402.95/396,616.18 = 166,614.26/x
  3. Step 3: Cross multiply
    287,402.95x = 396,616.18 × 166,614.26
  4. Step 4: Simplify right side
    287,402.95x = 66,081,910,303.57
  5. Step 5: Solve for x
    x = 66,081,910,303.57/287,402.95
  6. Step 6: Final answer
    x = 229,927.74

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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.