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Finding the Fourth Proportional to 545,472.80, 818,337.98 and 171,495.80

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Solution

The fourth proportional to 545,472.80, 818,337.98 and 171,495.80 is: 257,284.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,472.80 : 818,337.98 = 171,495.80 : x
  2. Step 2: Convert to fraction form
    545,472.80/818,337.98 = 171,495.80/x
  3. Step 3: Cross multiply
    545,472.80x = 818,337.98 × 171,495.80
  4. Step 4: Simplify right side
    545,472.80x = 140,341,526,550.48
  5. Step 5: Solve for x
    x = 140,341,526,550.48/545,472.80
  6. Step 6: Final answer
    x = 257,284.19

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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.