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Finding the Fourth Proportional to 545,471.80, 818,336.48 and 171,494.80

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Solution

The fourth proportional to 545,471.80, 818,336.48 and 171,494.80 is: 257,282.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,471.80 : 818,336.48 = 171,494.80 : x
  2. Step 2: Convert to fraction form
    545,471.80/818,336.48 = 171,494.80/x
  3. Step 3: Cross multiply
    545,471.80x = 818,336.48 × 171,494.80
  4. Step 4: Simplify right side
    545,471.80x = 140,340,448,066.99
  5. Step 5: Solve for x
    x = 140,340,448,066.99/545,471.80
  6. Step 6: Final answer
    x = 257,282.68

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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.