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Finding the Fourth Proportional to 319,907.38, 479,964.71 and 95,269.68

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Solution

The fourth proportional to 319,907.38, 479,964.71 and 95,269.68 is: 142,935.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,907.38 : 479,964.71 = 95,269.68 : x
  2. Step 2: Convert to fraction form
    319,907.38/479,964.71 = 95,269.68/x
  3. Step 3: Cross multiply
    319,907.38x = 479,964.71 × 95,269.68
  4. Step 4: Simplify right side
    319,907.38x = 45,726,084,332.99
  5. Step 5: Solve for x
    x = 45,726,084,332.99/319,907.38
  6. Step 6: Final answer
    x = 142,935.38

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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.