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Finding the Fourth Proportional to 275,789.91, 380,595.21 and 153,293.76

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Solution

The fourth proportional to 275,789.91, 380,595.21 and 153,293.76 is: 211,548.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,789.91 : 380,595.21 = 153,293.76 : x
  2. Step 2: Convert to fraction form
    275,789.91/380,595.21 = 153,293.76/x
  3. Step 3: Cross multiply
    275,789.91x = 380,595.21 × 153,293.76
  4. Step 4: Simplify right side
    275,789.91x = 58,342,870,778.89
  5. Step 5: Solve for x
    x = 58,342,870,778.89/275,789.91
  6. Step 6: Final answer
    x = 211,548.24

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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.