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Finding the Fourth Proportional to 377,079.16, 520,379.40 and 205,008.88

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Solution

The fourth proportional to 377,079.16, 520,379.40 and 205,008.88 is: 282,917.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,079.16 : 520,379.40 = 205,008.88 : x
  2. Step 2: Convert to fraction form
    377,079.16/520,379.40 = 205,008.88/x
  3. Step 3: Cross multiply
    377,079.16x = 520,379.40 × 205,008.88
  4. Step 4: Simplify right side
    377,079.16x = 106,682,397,969.07
  5. Step 5: Solve for x
    x = 106,682,397,969.07/377,079.16
  6. Step 6: Final answer
    x = 282,917.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.