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Finding the Fourth Proportional to 311,663.37, 468,339.21 and 169,613.67

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Solution

The fourth proportional to 311,663.37, 468,339.21 and 169,613.67 is: 254,879.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,663.37 : 468,339.21 = 169,613.67 : x
  2. Step 2: Convert to fraction form
    311,663.37/468,339.21 = 169,613.67/x
  3. Step 3: Cross multiply
    311,663.37x = 468,339.21 × 169,613.67
  4. Step 4: Simplify right side
    311,663.37x = 79,436,732,213.00
  5. Step 5: Solve for x
    x = 79,436,732,213.00/311,663.37
  6. Step 6: Final answer
    x = 254,879.91

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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.