Home / 385,028.10-531,311.79-223,871.73

Finding the Fourth Proportional to 385,028.10, 531,311.79 and 223,871.73

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Solution

The fourth proportional to 385,028.10, 531,311.79 and 223,871.73 is: 308,927.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,028.10 : 531,311.79 = 223,871.73 : x
  2. Step 2: Convert to fraction form
    385,028.10/531,311.79 = 223,871.73/x
  3. Step 3: Cross multiply
    385,028.10x = 531,311.79 × 223,871.73
  4. Step 4: Simplify right side
    385,028.10x = 118,945,689,596.70
  5. Step 5: Solve for x
    x = 118,945,689,596.70/385,028.10
  6. Step 6: Final answer
    x = 308,927.30

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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.