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Finding the Fourth Proportional to 286,807.56, 395,794.76 and 159,480.42

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Solution

The fourth proportional to 286,807.56, 395,794.76 and 159,480.42 is: 220,083.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,807.56 : 395,794.76 = 159,480.42 : x
  2. Step 2: Convert to fraction form
    286,807.56/395,794.76 = 159,480.42/x
  3. Step 3: Cross multiply
    286,807.56x = 395,794.76 × 159,480.42
  4. Step 4: Simplify right side
    286,807.56x = 63,121,515,998.44
  5. Step 5: Solve for x
    x = 63,121,515,998.44/286,807.56
  6. Step 6: Final answer
    x = 220,083.17

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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.