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Finding the Fourth Proportional to 311,609.38, 467,405.87 and 98,368.68

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Solution

The fourth proportional to 311,609.38, 467,405.87 and 98,368.68 is: 147,550.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,609.38 : 467,405.87 = 98,368.68 : x
  2. Step 2: Convert to fraction form
    311,609.38/467,405.87 = 98,368.68/x
  3. Step 3: Cross multiply
    311,609.38x = 467,405.87 × 98,368.68
  4. Step 4: Simplify right side
    311,609.38x = 45,978,097,364.58
  5. Step 5: Solve for x
    x = 45,978,097,364.58/311,609.38
  6. Step 6: Final answer
    x = 147,550.43

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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.