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Finding the Fourth Proportional to 454.76, 627.83 and 313.14

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Solution

The fourth proportional to 454.76, 627.83 and 313.14 is: 432.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    454.76 : 627.83 = 313.14 : x
  2. Step 2: Convert to fraction form
    454.76/627.83 = 313.14/x
  3. Step 3: Cross multiply
    454.76x = 627.83 × 313.14
  4. Step 4: Simplify right side
    454.76x = 196,598.00
  5. Step 5: Solve for x
    x = 196,598.00/454.76
  6. Step 6: Final answer
    x = 432.31

Related Problems

Find fourth proportional to 227.38, 313.91 and 156.57
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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.