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Finding the Fourth Proportional to 251,924.70, 377,777.70 and 83,379.90

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Solution

The fourth proportional to 251,924.70, 377,777.70 and 83,379.90 is: 125,033.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,924.70 : 377,777.70 = 83,379.90 : x
  2. Step 2: Convert to fraction form
    251,924.70/377,777.70 = 83,379.90/x
  3. Step 3: Cross multiply
    251,924.70x = 377,777.70 × 83,379.90
  4. Step 4: Simplify right side
    251,924.70x = 31,499,066,848.23
  5. Step 5: Solve for x
    x = 31,499,066,848.23/251,924.70
  6. Step 6: Final answer
    x = 125,033.66

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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.