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Finding the Fourth Proportional to 627.50, 941.18 and 319.59

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Solution

The fourth proportional to 627.50, 941.18 and 319.59 is: 479.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    627.50 : 941.18 = 319.59 : x
  2. Step 2: Convert to fraction form
    627.50/941.18 = 319.59/x
  3. Step 3: Cross multiply
    627.50x = 941.18 × 319.59
  4. Step 4: Simplify right side
    627.50x = 300,792.52
  5. Step 5: Solve for x
    x = 300,792.52/627.50
  6. Step 6: Final answer
    x = 479.35

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1.5x scale

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.