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Finding the Fourth Proportional to 333.24, 498.90 and 278.52

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Solution

The fourth proportional to 333.24, 498.90 and 278.52 is: 416.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    333.24 : 498.90 = 278.52 : x
  2. Step 2: Convert to fraction form
    333.24/498.90 = 278.52/x
  3. Step 3: Cross multiply
    333.24x = 498.90 × 278.52
  4. Step 4: Simplify right side
    333.24x = 138,953.63
  5. Step 5: Solve for x
    x = 138,953.63/333.24
  6. Step 6: Final answer
    x = 416.98

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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.