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Finding the Fourth Proportional to 474.60, 657.14 and 450.30

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Solution

The fourth proportional to 474.60, 657.14 and 450.30 is: 623.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    474.60 : 657.14 = 450.30 : x
  2. Step 2: Convert to fraction form
    474.60/657.14 = 450.30/x
  3. Step 3: Cross multiply
    474.60x = 657.14 × 450.30
  4. Step 4: Simplify right side
    474.60x = 295,907.89
  5. Step 5: Solve for x
    x = 295,907.89/474.60
  6. Step 6: Final answer
    x = 623.49

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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.