Home / 278,631.56-384,609.66-165,453.52

Finding the Fourth Proportional to 278,631.56, 384,609.66 and 165,453.52

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Solution

The fourth proportional to 278,631.56, 384,609.66 and 165,453.52 is: 228,384.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,631.56 : 384,609.66 = 165,453.52 : x
  2. Step 2: Convert to fraction form
    278,631.56/384,609.66 = 165,453.52/x
  3. Step 3: Cross multiply
    278,631.56x = 384,609.66 × 165,453.52
  4. Step 4: Simplify right side
    278,631.56x = 63,635,022,073.00
  5. Step 5: Solve for x
    x = 63,635,022,073.00/278,631.56
  6. Step 6: Final answer
    x = 228,384.11

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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.