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Finding the Fourth Proportional to 449.07, 673.53 and 358.84

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Solution

The fourth proportional to 449.07, 673.53 and 358.84 is: 538.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    449.07 : 673.53 = 358.84 : x
  2. Step 2: Convert to fraction form
    449.07/673.53 = 358.84/x
  3. Step 3: Cross multiply
    449.07x = 673.53 × 358.84
  4. Step 4: Simplify right side
    449.07x = 241,689.51
  5. Step 5: Solve for x
    x = 241,689.51/449.07
  6. Step 6: Final answer
    x = 538.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.