Home / 388,271.48-535,865.22-222,764.38

Finding the Fourth Proportional to 388,271.48, 535,865.22 and 222,764.38

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Solution

The fourth proportional to 388,271.48, 535,865.22 and 222,764.38 is: 307,443.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,271.48 : 535,865.22 = 222,764.38 : x
  2. Step 2: Convert to fraction form
    388,271.48/535,865.22 = 222,764.38/x
  3. Step 3: Cross multiply
    388,271.48x = 535,865.22 × 222,764.38
  4. Step 4: Simplify right side
    388,271.48x = 119,371,682,157.20
  5. Step 5: Solve for x
    x = 119,371,682,157.20/388,271.48
  6. Step 6: Final answer
    x = 307,443.86

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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.