Home / 331,239.45-496,848.58-139,215.61

Finding the Fourth Proportional to 331,239.45, 496,848.58 and 139,215.61

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Solution

The fourth proportional to 331,239.45, 496,848.58 and 139,215.61 is: 208,818.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,239.45 : 496,848.58 = 139,215.61 : x
  2. Step 2: Convert to fraction form
    331,239.45/496,848.58 = 139,215.61/x
  3. Step 3: Cross multiply
    331,239.45x = 496,848.58 × 139,215.61
  4. Step 4: Simplify right side
    331,239.45x = 69,169,078,415.36
  5. Step 5: Solve for x
    x = 69,169,078,415.36/331,239.45
  6. Step 6: Final answer
    x = 208,818.96

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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.