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Finding the Fourth Proportional to 336,998.24, 505,497.12 and 87,680.24

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Solution

The fourth proportional to 336,998.24, 505,497.12 and 87,680.24 is: 131,520.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,998.24 : 505,497.12 = 87,680.24 : x
  2. Step 2: Convert to fraction form
    336,998.24/505,497.12 = 87,680.24/x
  3. Step 3: Cross multiply
    336,998.24x = 505,497.12 × 87,680.24
  4. Step 4: Simplify right side
    336,998.24x = 44,322,108,800.91
  5. Step 5: Solve for x
    x = 44,322,108,800.91/336,998.24
  6. Step 6: Final answer
    x = 131,520.30

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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.