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Finding the Fourth Proportional to 355,504.57, 533,204.39 and 130,812.80

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Solution

The fourth proportional to 355,504.57, 533,204.39 and 130,812.80 is: 196,199.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,504.57 : 533,204.39 = 130,812.80 : x
  2. Step 2: Convert to fraction form
    355,504.57/533,204.39 = 130,812.80/x
  3. Step 3: Cross multiply
    355,504.57x = 533,204.39 × 130,812.80
  4. Step 4: Simplify right side
    355,504.57x = 69,749,956,889.20
  5. Step 5: Solve for x
    x = 69,749,956,889.20/355,504.57
  6. Step 6: Final answer
    x = 196,199.89

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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.