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Finding the Fourth Proportional to 275,462.08, 413,138.72 and 75,730.96

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Solution

The fourth proportional to 275,462.08, 413,138.72 and 75,730.96 is: 113,581.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,462.08 : 413,138.72 = 75,730.96 : x
  2. Step 2: Convert to fraction form
    275,462.08/413,138.72 = 75,730.96/x
  3. Step 3: Cross multiply
    275,462.08x = 413,138.72 × 75,730.96
  4. Step 4: Simplify right side
    275,462.08x = 31,287,391,878.77
  5. Step 5: Solve for x
    x = 31,287,391,878.77/275,462.08
  6. Step 6: Final answer
    x = 113,581.48

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1.5x scale

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.