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Finding the Fourth Proportional to 286,361.34, 395,179.58 and 159,036.93

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Solution

The fourth proportional to 286,361.34, 395,179.58 and 159,036.93 is: 219,471.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,361.34 : 395,179.58 = 159,036.93 : x
  2. Step 2: Convert to fraction form
    286,361.34/395,179.58 = 159,036.93/x
  3. Step 3: Cross multiply
    286,361.34x = 395,179.58 × 159,036.93
  4. Step 4: Simplify right side
    286,361.34x = 62,848,146,406.70
  5. Step 5: Solve for x
    x = 62,848,146,406.70/286,361.34
  6. Step 6: Final answer
    x = 219,471.48

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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.