Home / 399,072.24-550,731.30-217,795.82

Finding the Fourth Proportional to 399,072.24, 550,731.30 and 217,795.82

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Solution

The fourth proportional to 399,072.24, 550,731.30 and 217,795.82 is: 300,564.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,072.24 : 550,731.30 = 217,795.82 : x
  2. Step 2: Convert to fraction form
    399,072.24/550,731.30 = 217,795.82/x
  3. Step 3: Cross multiply
    399,072.24x = 550,731.30 × 217,795.82
  4. Step 4: Simplify right side
    399,072.24x = 119,946,975,083.17
  5. Step 5: Solve for x
    x = 119,946,975,083.17/399,072.24
  6. Step 6: Final answer
    x = 300,564.57

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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.