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Finding the Fourth Proportional to 311,663.65, 468,339.63 and 169,613.95

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Solution

The fourth proportional to 311,663.65, 468,339.63 and 169,613.95 is: 254,880.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,663.65 : 468,339.63 = 169,613.95 : x
  2. Step 2: Convert to fraction form
    311,663.65/468,339.63 = 169,613.95/x
  3. Step 3: Cross multiply
    311,663.65x = 468,339.63 × 169,613.95
  4. Step 4: Simplify right side
    311,663.65x = 79,436,935,489.29
  5. Step 5: Solve for x
    x = 79,436,935,489.29/311,663.65
  6. Step 6: Final answer
    x = 254,880.33

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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.