Home / 377,405.46-520,823.66-205,324.40

Finding the Fourth Proportional to 377,405.46, 520,823.66 and 205,324.40

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Solution

The fourth proportional to 377,405.46, 520,823.66 and 205,324.40 is: 283,349.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,405.46 : 520,823.66 = 205,324.40 : x
  2. Step 2: Convert to fraction form
    377,405.46/520,823.66 = 205,324.40/x
  3. Step 3: Cross multiply
    377,405.46x = 520,823.66 × 205,324.40
  4. Step 4: Simplify right side
    377,405.46x = 106,937,801,864.56
  5. Step 5: Solve for x
    x = 106,937,801,864.56/377,405.46
  6. Step 6: Final answer
    x = 283,349.91

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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.