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Finding the Fourth Proportional to 355,551.82, 533,328.24 and 145,189.75

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Solution

The fourth proportional to 355,551.82, 533,328.24 and 145,189.75 is: 217,784.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,551.82 : 533,328.24 = 145,189.75 : x
  2. Step 2: Convert to fraction form
    355,551.82/533,328.24 = 145,189.75/x
  3. Step 3: Cross multiply
    355,551.82x = 533,328.24 × 145,189.75
  4. Step 4: Simplify right side
    355,551.82x = 77,433,793,833.54
  5. Step 5: Solve for x
    x = 77,433,793,833.54/355,551.82
  6. Step 6: Final answer
    x = 217,784.83

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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.