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Finding the Fourth Proportional to 225,590.06, 311,314.30 and 134,949.85

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Solution

The fourth proportional to 225,590.06, 311,314.30 and 134,949.85 is: 186,230.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,590.06 : 311,314.30 = 134,949.85 : x
  2. Step 2: Convert to fraction form
    225,590.06/311,314.30 = 134,949.85/x
  3. Step 3: Cross multiply
    225,590.06x = 311,314.30 × 134,949.85
  4. Step 4: Simplify right side
    225,590.06x = 42,011,816,972.19
  5. Step 5: Solve for x
    x = 42,011,816,972.19/225,590.06
  6. Step 6: Final answer
    x = 186,230.80

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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.