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Finding the Fourth Proportional to 287,179.34, 396,300.92 and 179,808.58

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Solution

The fourth proportional to 287,179.34, 396,300.92 and 179,808.58 is: 248,131.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,179.34 : 396,300.92 = 179,808.58 : x
  2. Step 2: Convert to fraction form
    287,179.34/396,300.92 = 179,808.58/x
  3. Step 3: Cross multiply
    287,179.34x = 396,300.92 × 179,808.58
  4. Step 4: Simplify right side
    287,179.34x = 71,258,304,056.46
  5. Step 5: Solve for x
    x = 71,258,304,056.46/287,179.34
  6. Step 6: Final answer
    x = 248,131.72

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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.