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Finding the Fourth Proportional to 545,986.40, 818,833.80 and 166,906.40

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Solution

The fourth proportional to 545,986.40, 818,833.80 and 166,906.40 is: 250,315.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,986.40 : 818,833.80 = 166,906.40 : x
  2. Step 2: Convert to fraction form
    545,986.40/818,833.80 = 166,906.40/x
  3. Step 3: Cross multiply
    545,986.40x = 818,833.80 × 166,906.40
  4. Step 4: Simplify right side
    545,986.40x = 136,668,601,756.32
  5. Step 5: Solve for x
    x = 136,668,601,756.32/545,986.40
  6. Step 6: Final answer
    x = 250,315.03

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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.