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Finding the Fourth Proportional to 417.24, 623.32 and 299.17

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Solution

The fourth proportional to 417.24, 623.32 and 299.17 is: 446.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    417.24 : 623.32 = 299.17 : x
  2. Step 2: Convert to fraction form
    417.24/623.32 = 299.17/x
  3. Step 3: Cross multiply
    417.24x = 623.32 × 299.17
  4. Step 4: Simplify right side
    417.24x = 186,478.64
  5. Step 5: Solve for x
    x = 186,478.64/417.24
  6. Step 6: Final answer
    x = 446.93

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.