Home / 287,009.37-396,091.86-159,685.23

Finding the Fourth Proportional to 287,009.37, 396,091.86 and 159,685.23

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Solution

The fourth proportional to 287,009.37, 396,091.86 and 159,685.23 is: 220,376.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,009.37 : 396,091.86 = 159,685.23 : x
  2. Step 2: Convert to fraction form
    287,009.37/396,091.86 = 159,685.23/x
  3. Step 3: Cross multiply
    287,009.37x = 396,091.86 × 159,685.23
  4. Step 4: Simplify right side
    287,009.37x = 63,250,019,765.23
  5. Step 5: Solve for x
    x = 63,250,019,765.23/287,009.37
  6. Step 6: Final answer
    x = 220,376.15

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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.