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Finding the Fourth Proportional to 498.99, 749.62 and 353.08

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Solution

The fourth proportional to 498.99, 749.62 and 353.08 is: 530.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    498.99 : 749.62 = 353.08 : x
  2. Step 2: Convert to fraction form
    498.99/749.62 = 353.08/x
  3. Step 3: Cross multiply
    498.99x = 749.62 × 353.08
  4. Step 4: Simplify right side
    498.99x = 264,675.83
  5. Step 5: Solve for x
    x = 264,675.83/498.99
  6. Step 6: Final answer
    x = 530.42

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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.