Home / 285,307.45-394,134.40-227,871.36

Finding the Fourth Proportional to 285,307.45, 394,134.40 and 227,871.36

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Solution

The fourth proportional to 285,307.45, 394,134.40 and 227,871.36 is: 314,790.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,307.45 : 394,134.40 = 227,871.36 : x
  2. Step 2: Convert to fraction form
    285,307.45/394,134.40 = 227,871.36/x
  3. Step 3: Cross multiply
    285,307.45x = 394,134.40 × 227,871.36
  4. Step 4: Simplify right side
    285,307.45x = 89,811,941,750.78
  5. Step 5: Solve for x
    x = 89,811,941,750.78/285,307.45
  6. Step 6: Final answer
    x = 314,790.03

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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.