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Finding the Fourth Proportional to 545,140.42, 817,743.44 and 171,163.42

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Solution

The fourth proportional to 545,140.42, 817,743.44 and 171,163.42 is: 256,755.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,140.42 : 817,743.44 = 171,163.42 : x
  2. Step 2: Convert to fraction form
    545,140.42/817,743.44 = 171,163.42/x
  3. Step 3: Cross multiply
    545,140.42x = 817,743.44 × 171,163.42
  4. Step 4: Simplify right side
    545,140.42x = 139,967,762,256.52
  5. Step 5: Solve for x
    x = 139,967,762,256.52/545,140.42
  6. Step 6: Final answer
    x = 256,755.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.