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Finding the Fourth Proportional to 243,357.35, 365,129.50 and 171,379.33

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Solution

The fourth proportional to 243,357.35, 365,129.50 and 171,379.33 is: 257,134.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,357.35 : 365,129.50 = 171,379.33 : x
  2. Step 2: Convert to fraction form
    243,357.35/365,129.50 = 171,379.33/x
  3. Step 3: Cross multiply
    243,357.35x = 365,129.50 × 171,379.33
  4. Step 4: Simplify right side
    243,357.35x = 62,575,649,073.24
  5. Step 5: Solve for x
    x = 62,575,649,073.24/243,357.35
  6. Step 6: Final answer
    x = 257,134.83

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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.