Home / 349,131.28-481,846.12-213,136.72

Finding the Fourth Proportional to 349,131.28, 481,846.12 and 213,136.72

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Solution

The fourth proportional to 349,131.28, 481,846.12 and 213,136.72 is: 294,156.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,131.28 : 481,846.12 = 213,136.72 : x
  2. Step 2: Convert to fraction form
    349,131.28/481,846.12 = 213,136.72/x
  3. Step 3: Cross multiply
    349,131.28x = 481,846.12 × 213,136.72
  4. Step 4: Simplify right side
    349,131.28x = 102,699,101,561.53
  5. Step 5: Solve for x
    x = 102,699,101,561.53/349,131.28
  6. Step 6: Final answer
    x = 294,156.12

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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.