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Finding the Fourth Proportional to 289,576.80, 434,350.80 and 149,349.60

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Solution

The fourth proportional to 289,576.80, 434,350.80 and 149,349.60 is: 224,016.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,576.80 : 434,350.80 = 149,349.60 : x
  2. Step 2: Convert to fraction form
    289,576.80/434,350.80 = 149,349.60/x
  3. Step 3: Cross multiply
    289,576.80x = 434,350.80 × 149,349.60
  4. Step 4: Simplify right side
    289,576.80x = 64,870,118,239.68
  5. Step 5: Solve for x
    x = 64,870,118,239.68/289,576.80
  6. Step 6: Final answer
    x = 224,016.97

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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.