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Finding the Fourth Proportional to 221,324.60, 331,590.90 and 134,612.60

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Solution

The fourth proportional to 221,324.60, 331,590.90 and 134,612.60 is: 201,678.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,324.60 : 331,590.90 = 134,612.60 : x
  2. Step 2: Convert to fraction form
    221,324.60/331,590.90 = 134,612.60/x
  3. Step 3: Cross multiply
    221,324.60x = 331,590.90 × 134,612.60
  4. Step 4: Simplify right side
    221,324.60x = 44,636,313,185.34
  5. Step 5: Solve for x
    x = 44,636,313,185.34/221,324.60
  6. Step 6: Final answer
    x = 201,678.05

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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.