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Finding the Fourth Proportional to 377,687.80, 566,531.70 and 218,036.80

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Solution

The fourth proportional to 377,687.80, 566,531.70 and 218,036.80 is: 327,055.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,687.80 : 566,531.70 = 218,036.80 : x
  2. Step 2: Convert to fraction form
    377,687.80/566,531.70 = 218,036.80/x
  3. Step 3: Cross multiply
    377,687.80x = 566,531.70 × 218,036.80
  4. Step 4: Simplify right side
    377,687.80x = 123,524,758,966.56
  5. Step 5: Solve for x
    x = 123,524,758,966.56/377,687.80
  6. Step 6: Final answer
    x = 327,055.20

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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.