Home / 286,331.10-395,155.20-159,006.69

Finding the Fourth Proportional to 286,331.10, 395,155.20 and 159,006.69

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Solution

The fourth proportional to 286,331.10, 395,155.20 and 159,006.69 is: 219,439.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,331.10 : 395,155.20 = 159,006.69 : x
  2. Step 2: Convert to fraction form
    286,331.10/395,155.20 = 159,006.69/x
  3. Step 3: Cross multiply
    286,331.10x = 395,155.20 × 159,006.69
  4. Step 4: Simplify right side
    286,331.10x = 62,832,320,388.29
  5. Step 5: Solve for x
    x = 62,832,320,388.29/286,331.10
  6. Step 6: Final answer
    x = 219,439.38

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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.