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Finding the Fourth Proportional to 545,463.92, 818,327.08 and 171,486.64

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Solution

The fourth proportional to 545,463.92, 818,327.08 and 171,486.64 is: 257,271.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,463.92 : 818,327.08 = 171,486.64 : x
  2. Step 2: Convert to fraction form
    545,463.92/818,327.08 = 171,486.64/x
  3. Step 3: Cross multiply
    545,463.92x = 818,327.08 × 171,486.64
  4. Step 4: Simplify right side
    545,463.92x = 140,332,161,370.21
  5. Step 5: Solve for x
    x = 140,332,161,370.21/545,463.92
  6. Step 6: Final answer
    x = 257,271.21

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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.