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Finding the Fourth Proportional to 355,273.07, 531,954.63 and 270,630

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Solution

The fourth proportional to 355,273.07, 531,954.63 and 270,630 is: 405,217.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,273.07 : 531,954.63 = 270,630 : x
  2. Step 2: Convert to fraction form
    355,273.07/531,954.63 = 270,630/x
  3. Step 3: Cross multiply
    355,273.07x = 531,954.63 × 270,630
  4. Step 4: Simplify right side
    355,273.07x = 143,962,881,516.90
  5. Step 5: Solve for x
    x = 143,962,881,516.90/355,273.07
  6. Step 6: Final answer
    x = 405,217.55

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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.