Home / 287,114.22-396,209.34-159,787.08

Finding the Fourth Proportional to 287,114.22, 396,209.34 and 159,787.08

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Solution

The fourth proportional to 287,114.22, 396,209.34 and 159,787.08 is: 220,501.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,114.22 : 396,209.34 = 159,787.08 : x
  2. Step 2: Convert to fraction form
    287,114.22/396,209.34 = 159,787.08/x
  3. Step 3: Cross multiply
    287,114.22x = 396,209.34 × 159,787.08
  4. Step 4: Simplify right side
    287,114.22x = 63,309,133,507.33
  5. Step 5: Solve for x
    x = 63,309,133,507.33/287,114.22
  6. Step 6: Final answer
    x = 220,501.56

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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.