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Finding the Fourth Proportional to 240,162.48, 331,444.44 and 139,554

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Solution

The fourth proportional to 240,162.48, 331,444.44 and 139,554 is: 192,596.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,162.48 : 331,444.44 = 139,554 : x
  2. Step 2: Convert to fraction form
    240,162.48/331,444.44 = 139,554/x
  3. Step 3: Cross multiply
    240,162.48x = 331,444.44 × 139,554
  4. Step 4: Simplify right side
    240,162.48x = 46,254,397,379.76
  5. Step 5: Solve for x
    x = 46,254,397,379.76/240,162.48
  6. Step 6: Final answer
    x = 192,596.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.