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Finding the Fourth Proportional to 393,137.94, 588,890.43 and 250,276.72

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Solution

The fourth proportional to 393,137.94, 588,890.43 and 250,276.72 is: 374,895.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,137.94 : 588,890.43 = 250,276.72 : x
  2. Step 2: Convert to fraction form
    393,137.94/588,890.43 = 250,276.72/x
  3. Step 3: Cross multiply
    393,137.94x = 588,890.43 × 250,276.72
  4. Step 4: Simplify right side
    393,137.94x = 147,385,565,259.79
  5. Step 5: Solve for x
    x = 147,385,565,259.79/393,137.94
  6. Step 6: Final answer
    x = 374,895.30

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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.