Home / 377,945.66-521,557.18-205,865.55

Finding the Fourth Proportional to 377,945.66, 521,557.18 and 205,865.55

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Solution

The fourth proportional to 377,945.66, 521,557.18 and 205,865.55 is: 284,090.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,945.66 : 521,557.18 = 205,865.55 : x
  2. Step 2: Convert to fraction form
    377,945.66/521,557.18 = 205,865.55/x
  3. Step 3: Cross multiply
    377,945.66x = 521,557.18 × 205,865.55
  4. Step 4: Simplify right side
    377,945.66x = 107,370,655,202.49
  5. Step 5: Solve for x
    x = 107,370,655,202.49/377,945.66
  6. Step 6: Final answer
    x = 284,090.19

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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.