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Finding the Fourth Proportional to 319,797.84, 479,613.12 and 95,097.72

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Solution

The fourth proportional to 319,797.84, 479,613.12 and 95,097.72 is: 142,621.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,797.84 : 479,613.12 = 95,097.72 : x
  2. Step 2: Convert to fraction form
    319,797.84/479,613.12 = 95,097.72/x
  3. Step 3: Cross multiply
    319,797.84x = 479,613.12 × 95,097.72
  4. Step 4: Simplify right side
    319,797.84x = 45,610,114,194.09
  5. Step 5: Solve for x
    x = 45,610,114,194.09/319,797.84
  6. Step 6: Final answer
    x = 142,621.71

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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.