Home / 377,811.81-521,379.48-205,727.10

Finding the Fourth Proportional to 377,811.81, 521,379.48 and 205,727.10

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Solution

The fourth proportional to 377,811.81, 521,379.48 and 205,727.10 is: 283,902.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,811.81 : 521,379.48 = 205,727.10 : x
  2. Step 2: Convert to fraction form
    377,811.81/521,379.48 = 205,727.10/x
  3. Step 3: Cross multiply
    377,811.81x = 521,379.48 × 205,727.10
  4. Step 4: Simplify right side
    377,811.81x = 107,261,888,419.91
  5. Step 5: Solve for x
    x = 107,261,888,419.91/377,811.81
  6. Step 6: Final answer
    x = 283,902.95

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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.