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Finding the Fourth Proportional to 287,178.83, 396,300.22 and 179,808.06

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Solution

The fourth proportional to 287,178.83, 396,300.22 and 179,808.06 is: 248,131.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,178.83 : 396,300.22 = 179,808.06 : x
  2. Step 2: Convert to fraction form
    287,178.83/396,300.22 = 179,808.06/x
  3. Step 3: Cross multiply
    287,178.83x = 396,300.22 × 179,808.06
  4. Step 4: Simplify right side
    287,178.83x = 71,257,973,286.25
  5. Step 5: Solve for x
    x = 71,257,973,286.25/287,178.83
  6. Step 6: Final answer
    x = 248,131.01

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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.