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Finding the Fourth Proportional to 287,178.80, 396,300.18 and 179,808.03

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Solution

The fourth proportional to 287,178.80, 396,300.18 and 179,808.03 is: 248,130.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,178.80 : 396,300.18 = 179,808.03 : x
  2. Step 2: Convert to fraction form
    287,178.80/396,300.18 = 179,808.03/x
  3. Step 3: Cross multiply
    287,178.80x = 396,300.18 × 179,808.03
  4. Step 4: Simplify right side
    287,178.80x = 71,257,953,755.41
  5. Step 5: Solve for x
    x = 71,257,953,755.41/287,178.80
  6. Step 6: Final answer
    x = 248,130.97

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1.5x scale

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.