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Finding the Fourth Proportional to 317,692.62, 438,194.55 and 269,614.86

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Solution

The fourth proportional to 317,692.62, 438,194.55 and 269,614.86 is: 371,880.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,692.62 : 438,194.55 = 269,614.86 : x
  2. Step 2: Convert to fraction form
    317,692.62/438,194.55 = 269,614.86/x
  3. Step 3: Cross multiply
    317,692.62x = 438,194.55 × 269,614.86
  4. Step 4: Simplify right side
    317,692.62x = 118,143,762,251.01
  5. Step 5: Solve for x
    x = 118,143,762,251.01/317,692.62
  6. Step 6: Final answer
    x = 371,880.73

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1.5x scale

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.