Home / 252,640.42-378,631.56-102,705.58

Finding the Fourth Proportional to 252,640.42, 378,631.56 and 102,705.58

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Solution

The fourth proportional to 252,640.42, 378,631.56 and 102,705.58 is: 153,924.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,640.42 : 378,631.56 = 102,705.58 : x
  2. Step 2: Convert to fraction form
    252,640.42/378,631.56 = 102,705.58/x
  3. Step 3: Cross multiply
    252,640.42x = 378,631.56 × 102,705.58
  4. Step 4: Simplify right side
    252,640.42x = 38,887,573,976.10
  5. Step 5: Solve for x
    x = 38,887,573,976.10/252,640.42
  6. Step 6: Final answer
    x = 153,924.59

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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.