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Finding the Fourth Proportional to 286,274.28, 395,046.54 and 158,942.28

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Solution

The fourth proportional to 286,274.28, 395,046.54 and 158,942.28 is: 219,333.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,274.28 : 395,046.54 = 158,942.28 : x
  2. Step 2: Convert to fraction form
    286,274.28/395,046.54 = 158,942.28/x
  3. Step 3: Cross multiply
    286,274.28x = 395,046.54 × 158,942.28
  4. Step 4: Simplify right side
    286,274.28x = 62,789,597,773.71
  5. Step 5: Solve for x
    x = 62,789,597,773.71/286,274.28
  6. Step 6: Final answer
    x = 219,333.70

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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.