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Finding the Fourth Proportional to 545,881.60, 818,937.60 and 171,942.40

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Solution

The fourth proportional to 545,881.60, 818,937.60 and 171,942.40 is: 257,949.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,881.60 : 818,937.60 = 171,942.40 : x
  2. Step 2: Convert to fraction form
    545,881.60/818,937.60 = 171,942.40/x
  3. Step 3: Cross multiply
    545,881.60x = 818,937.60 × 171,942.40
  4. Step 4: Simplify right side
    545,881.60x = 140,810,096,394.24
  5. Step 5: Solve for x
    x = 140,810,096,394.24/545,881.60
  6. Step 6: Final answer
    x = 257,949.89

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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.