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Finding the Fourth Proportional to 439,893.84, 659,619.32 and 214,917.16

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Solution

The fourth proportional to 439,893.84, 659,619.32 and 214,917.16 is: 322,267.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,893.84 : 659,619.32 = 214,917.16 : x
  2. Step 2: Convert to fraction form
    439,893.84/659,619.32 = 214,917.16/x
  3. Step 3: Cross multiply
    439,893.84x = 659,619.32 × 214,917.16
  4. Step 4: Simplify right side
    439,893.84x = 141,763,510,935.53
  5. Step 5: Solve for x
    x = 141,763,510,935.53/439,893.84
  6. Step 6: Final answer
    x = 322,267.55

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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.