Home / 287,495.28-396,743.61-160,179.18

Finding the Fourth Proportional to 287,495.28, 396,743.61 and 160,179.18

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Solution

The fourth proportional to 287,495.28, 396,743.61 and 160,179.18 is: 221,047.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,495.28 : 396,743.61 = 160,179.18 : x
  2. Step 2: Convert to fraction form
    287,495.28/396,743.61 = 160,179.18/x
  3. Step 3: Cross multiply
    287,495.28x = 396,743.61 × 160,179.18
  4. Step 4: Simplify right side
    287,495.28x = 63,550,066,120.04
  5. Step 5: Solve for x
    x = 63,550,066,120.04/287,495.28
  6. Step 6: Final answer
    x = 221,047.34

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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.