Home / 286,787.72-430,181.52-136,572.56

Finding the Fourth Proportional to 286,787.72, 430,181.52 and 136,572.56

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Solution

The fourth proportional to 286,787.72, 430,181.52 and 136,572.56 is: 204,858.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,787.72 : 430,181.52 = 136,572.56 : x
  2. Step 2: Convert to fraction form
    286,787.72/430,181.52 = 136,572.56/x
  3. Step 3: Cross multiply
    286,787.72x = 430,181.52 × 136,572.56
  4. Step 4: Simplify right side
    286,787.72x = 58,750,991,451.09
  5. Step 5: Solve for x
    x = 58,750,991,451.09/286,787.72
  6. Step 6: Final answer
    x = 204,858.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.