Home / 287,388.20-396,559.30-166,528.36

Finding the Fourth Proportional to 287,388.20, 396,559.30 and 166,528.36

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Solution

The fourth proportional to 287,388.20, 396,559.30 and 166,528.36 is: 229,788.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,388.20 : 396,559.30 = 166,528.36 : x
  2. Step 2: Convert to fraction form
    287,388.20/396,559.30 = 166,528.36/x
  3. Step 3: Cross multiply
    287,388.20x = 396,559.30 × 166,528.36
  4. Step 4: Simplify right side
    287,388.20x = 66,038,369,871.75
  5. Step 5: Solve for x
    x = 66,038,369,871.75/287,388.20
  6. Step 6: Final answer
    x = 229,788.04

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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.