Home / 287,164.76-396,287.38-159,837.62

Finding the Fourth Proportional to 287,164.76, 396,287.38 and 159,837.62

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Solution

The fourth proportional to 287,164.76, 396,287.38 and 159,837.62 is: 220,575.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,164.76 : 396,287.38 = 159,837.62 : x
  2. Step 2: Convert to fraction form
    287,164.76/396,287.38 = 159,837.62/x
  3. Step 3: Cross multiply
    287,164.76x = 396,287.38 × 159,837.62
  4. Step 4: Simplify right side
    287,164.76x = 63,341,631,655.24
  5. Step 5: Solve for x
    x = 63,341,631,655.24/287,164.76
  6. Step 6: Final answer
    x = 220,575.92

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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.