Home / 394,670.72-591,940.08-141,899.68

Finding the Fourth Proportional to 394,670.72, 591,940.08 and 141,899.68

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Solution

The fourth proportional to 394,670.72, 591,940.08 and 141,899.68 is: 212,825.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,670.72 : 591,940.08 = 141,899.68 : x
  2. Step 2: Convert to fraction form
    394,670.72/591,940.08 = 141,899.68/x
  3. Step 3: Cross multiply
    394,670.72x = 591,940.08 × 141,899.68
  4. Step 4: Simplify right side
    394,670.72x = 83,996,107,931.17
  5. Step 5: Solve for x
    x = 83,996,107,931.17/394,670.72
  6. Step 6: Final answer
    x = 212,825.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.