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Finding the Fourth Proportional to 454.99, 627.50 and 384.44

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Solution

The fourth proportional to 454.99, 627.50 and 384.44 is: 530.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    454.99 : 627.50 = 384.44 : x
  2. Step 2: Convert to fraction form
    454.99/627.50 = 384.44/x
  3. Step 3: Cross multiply
    454.99x = 627.50 × 384.44
  4. Step 4: Simplify right side
    454.99x = 241,236.10
  5. Step 5: Solve for x
    x = 241,236.10/454.99
  6. Step 6: Final answer
    x = 530.20

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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.