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Finding the Fourth Proportional to 251,521.58, 377,288.86 and 74,034.38

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Solution

The fourth proportional to 251,521.58, 377,288.86 and 74,034.38 is: 111,053.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,521.58 : 377,288.86 = 74,034.38 : x
  2. Step 2: Convert to fraction form
    251,521.58/377,288.86 = 74,034.38/x
  3. Step 3: Cross multiply
    251,521.58x = 377,288.86 × 74,034.38
  4. Step 4: Simplify right side
    251,521.58x = 27,932,346,831.01
  5. Step 5: Solve for x
    x = 27,932,346,831.01/251,521.58
  6. Step 6: Final answer
    x = 111,053.48

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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.