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Finding the Fourth Proportional to 311,149.64, 429,381.60 and 175,183.28

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Solution

The fourth proportional to 311,149.64, 429,381.60 and 175,183.28 is: 241,750.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,149.64 : 429,381.60 = 175,183.28 : x
  2. Step 2: Convert to fraction form
    311,149.64/429,381.60 = 175,183.28/x
  3. Step 3: Cross multiply
    311,149.64x = 429,381.60 × 175,183.28
  4. Step 4: Simplify right side
    311,149.64x = 75,220,477,059.65
  5. Step 5: Solve for x
    x = 75,220,477,059.65/311,149.64
  6. Step 6: Final answer
    x = 241,750.17

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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.