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Finding the Fourth Proportional to 155,272.55, 232,958.03 and 55,430.54

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Solution

The fourth proportional to 155,272.55, 232,958.03 and 55,430.54 is: 83,163.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,272.55 : 232,958.03 = 55,430.54 : x
  2. Step 2: Convert to fraction form
    155,272.55/232,958.03 = 55,430.54/x
  3. Step 3: Cross multiply
    155,272.55x = 232,958.03 × 55,430.54
  4. Step 4: Simplify right side
    155,272.55x = 12,912,987,958.29
  5. Step 5: Solve for x
    x = 12,912,987,958.29/155,272.55
  6. Step 6: Final answer
    x = 83,163.37

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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.