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Finding the Fourth Proportional to 454.75, 626.19 and 444.53

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Solution

The fourth proportional to 454.75, 626.19 and 444.53 is: 612.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    454.75 : 626.19 = 444.53 : x
  2. Step 2: Convert to fraction form
    454.75/626.19 = 444.53/x
  3. Step 3: Cross multiply
    454.75x = 626.19 × 444.53
  4. Step 4: Simplify right side
    454.75x = 278,360.24
  5. Step 5: Solve for x
    x = 278,360.24/454.75
  6. Step 6: Final answer
    x = 612.12

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Find fourth proportional to 227.38, 313.10 and 222.27
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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.