Home / 377,406.72-520,825.38-205,325.64

Finding the Fourth Proportional to 377,406.72, 520,825.38 and 205,325.64

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Solution

The fourth proportional to 377,406.72, 520,825.38 and 205,325.64 is: 283,351.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,406.72 : 520,825.38 = 205,325.64 : x
  2. Step 2: Convert to fraction form
    377,406.72/520,825.38 = 205,325.64/x
  3. Step 3: Cross multiply
    377,406.72x = 520,825.38 × 205,325.64
  4. Step 4: Simplify right side
    377,406.72x = 106,938,804,476.74
  5. Step 5: Solve for x
    x = 106,938,804,476.74/377,406.72
  6. Step 6: Final answer
    x = 283,351.62

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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.