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Finding the Fourth Proportional to 354,235.56, 531,360.63 and 143,729.52

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Solution

The fourth proportional to 354,235.56, 531,360.63 and 143,729.52 is: 215,597.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,235.56 : 531,360.63 = 143,729.52 : x
  2. Step 2: Convert to fraction form
    354,235.56/531,360.63 = 143,729.52/x
  3. Step 3: Cross multiply
    354,235.56x = 531,360.63 × 143,729.52
  4. Step 4: Simplify right side
    354,235.56x = 76,372,208,296.80
  5. Step 5: Solve for x
    x = 76,372,208,296.80/354,235.56
  6. Step 6: Final answer
    x = 215,597.24

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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.