Home / 307,703.40-424,855.73-198,872.17

Finding the Fourth Proportional to 307,703.40, 424,855.73 and 198,872.17

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Solution

The fourth proportional to 307,703.40, 424,855.73 and 198,872.17 is: 274,589.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,703.40 : 424,855.73 = 198,872.17 : x
  2. Step 2: Convert to fraction form
    307,703.40/424,855.73 = 198,872.17/x
  3. Step 3: Cross multiply
    307,703.40x = 424,855.73 × 198,872.17
  4. Step 4: Simplify right side
    307,703.40x = 84,491,978,905.53
  5. Step 5: Solve for x
    x = 84,491,978,905.53/307,703.40
  6. Step 6: Final answer
    x = 274,589.03

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1.5x scale

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.