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Finding the Fourth Proportional to 311,768.58, 429,652.74 and 225,581.64

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Solution

The fourth proportional to 311,768.58, 429,652.74 and 225,581.64 is: 310,877.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,768.58 : 429,652.74 = 225,581.64 : x
  2. Step 2: Convert to fraction form
    311,768.58/429,652.74 = 225,581.64/x
  3. Step 3: Cross multiply
    311,768.58x = 429,652.74 × 225,581.64
  4. Step 4: Simplify right side
    311,768.58x = 96,921,769,719.69
  5. Step 5: Solve for x
    x = 96,921,769,719.69/311,768.58
  6. Step 6: Final answer
    x = 310,877.29

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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.