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Finding the Fourth Proportional to 393,385.51, 588,809.35 and 203,584.77

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Solution

The fourth proportional to 393,385.51, 588,809.35 and 203,584.77 is: 304,720.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,385.51 : 588,809.35 = 203,584.77 : x
  2. Step 2: Convert to fraction form
    393,385.51/588,809.35 = 203,584.77/x
  3. Step 3: Cross multiply
    393,385.51x = 588,809.35 × 203,584.77
  4. Step 4: Simplify right side
    393,385.51x = 119,872,616,093.60
  5. Step 5: Solve for x
    x = 119,872,616,093.60/393,385.51
  6. Step 6: Final answer
    x = 304,720.47

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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.