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Finding the Fourth Proportional to 545,506.05, 818,387.82 and 171,529.05

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Solution

The fourth proportional to 545,506.05, 818,387.82 and 171,529.05 is: 257,334.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,506.05 : 818,387.82 = 171,529.05 : x
  2. Step 2: Convert to fraction form
    545,506.05/818,387.82 = 171,529.05/x
  3. Step 3: Cross multiply
    545,506.05x = 818,387.82 × 171,529.05
  4. Step 4: Simplify right side
    545,506.05x = 140,377,285,296.17
  5. Step 5: Solve for x
    x = 140,377,285,296.17/545,506.05
  6. Step 6: Final answer
    x = 257,334.06

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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.