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Finding the Fourth Proportional to 377,454.40, 520,885.12 and 207,687.84

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Solution

The fourth proportional to 377,454.40, 520,885.12 and 207,687.84 is: 286,608.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,454.40 : 520,885.12 = 207,687.84 : x
  2. Step 2: Convert to fraction form
    377,454.40/520,885.12 = 207,687.84/x
  3. Step 3: Cross multiply
    377,454.40x = 520,885.12 × 207,687.84
  4. Step 4: Simplify right side
    377,454.40x = 108,181,505,460.94
  5. Step 5: Solve for x
    x = 108,181,505,460.94/377,454.40
  6. Step 6: Final answer
    x = 286,608.15

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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.