Home / 287,531.10-396,794.56-166,744.12

Finding the Fourth Proportional to 287,531.10, 396,794.56 and 166,744.12

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Solution

The fourth proportional to 287,531.10, 396,794.56 and 166,744.12 is: 230,107.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,531.10 : 396,794.56 = 166,744.12 : x
  2. Step 2: Convert to fraction form
    287,531.10/396,794.56 = 166,744.12/x
  3. Step 3: Cross multiply
    287,531.10x = 396,794.56 × 166,744.12
  4. Step 4: Simplify right side
    287,531.10x = 66,163,159,727.99
  5. Step 5: Solve for x
    x = 66,163,159,727.99/287,531.10
  6. Step 6: Final answer
    x = 230,107.84

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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.