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Finding the Fourth Proportional to 450.04, 621.08 and 339.32

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Solution

The fourth proportional to 450.04, 621.08 and 339.32 is: 468.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    450.04 : 621.08 = 339.32 : x
  2. Step 2: Convert to fraction form
    450.04/621.08 = 339.32/x
  3. Step 3: Cross multiply
    450.04x = 621.08 × 339.32
  4. Step 4: Simplify right side
    450.04x = 210,744.87
  5. Step 5: Solve for x
    x = 210,744.87/450.04
  6. Step 6: Final answer
    x = 468.28

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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.