Home / 287,491.20-396,738.27-160,171.26

Finding the Fourth Proportional to 287,491.20, 396,738.27 and 160,171.26

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Solution

The fourth proportional to 287,491.20, 396,738.27 and 160,171.26 is: 221,036.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,491.20 : 396,738.27 = 160,171.26 : x
  2. Step 2: Convert to fraction form
    287,491.20/396,738.27 = 160,171.26/x
  3. Step 3: Cross multiply
    287,491.20x = 396,738.27 × 160,171.26
  4. Step 4: Simplify right side
    287,491.20x = 63,546,068,596.12
  5. Step 5: Solve for x
    x = 63,546,068,596.12/287,491.20
  6. Step 6: Final answer
    x = 221,036.57

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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.