Home / 287,276.36-396,444.14-159,954.69

Finding the Fourth Proportional to 287,276.36, 396,444.14 and 159,954.69

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Solution

The fourth proportional to 287,276.36, 396,444.14 and 159,954.69 is: 220,739.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,276.36 : 396,444.14 = 159,954.69 : x
  2. Step 2: Convert to fraction form
    287,276.36/396,444.14 = 159,954.69/x
  3. Step 3: Cross multiply
    287,276.36x = 396,444.14 × 159,954.69
  4. Step 4: Simplify right side
    287,276.36x = 63,413,099,516.02
  5. Step 5: Solve for x
    x = 63,413,099,516.02/287,276.36
  6. Step 6: Final answer
    x = 220,739.01

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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.