Home / 387,722.46-535,021.70-224,350.73

Finding the Fourth Proportional to 387,722.46, 535,021.70 and 224,350.73

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Solution

The fourth proportional to 387,722.46, 535,021.70 and 224,350.73 is: 309,583.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,722.46 : 535,021.70 = 224,350.73 : x
  2. Step 2: Convert to fraction form
    387,722.46/535,021.70 = 224,350.73/x
  3. Step 3: Cross multiply
    387,722.46x = 535,021.70 × 224,350.73
  4. Step 4: Simplify right side
    387,722.46x = 120,032,505,163.98
  5. Step 5: Solve for x
    x = 120,032,505,163.98/387,722.46
  6. Step 6: Final answer
    x = 309,583.57

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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.