Home / 377,741.28-521,286.08-205,660.40

Finding the Fourth Proportional to 377,741.28, 521,286.08 and 205,660.40

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Solution

The fourth proportional to 377,741.28, 521,286.08 and 205,660.40 is: 283,813.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,741.28 : 521,286.08 = 205,660.40 : x
  2. Step 2: Convert to fraction form
    377,741.28/521,286.08 = 205,660.40/x
  3. Step 3: Cross multiply
    377,741.28x = 521,286.08 × 205,660.40
  4. Step 4: Simplify right side
    377,741.28x = 107,207,903,727.23
  5. Step 5: Solve for x
    x = 107,207,903,727.23/377,741.28
  6. Step 6: Final answer
    x = 283,813.05

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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.