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Finding the Fourth Proportional to 1,502.34, 2,253.34 and 406.80

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Solution

The fourth proportional to 1,502.34, 2,253.34 and 406.80 is: 610.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,502.34 : 2,253.34 = 406.80 : x
  2. Step 2: Convert to fraction form
    1,502.34/2,253.34 = 406.80/x
  3. Step 3: Cross multiply
    1,502.34x = 2,253.34 × 406.80
  4. Step 4: Simplify right side
    1,502.34x = 916,658.71
  5. Step 5: Solve for x
    x = 916,658.71/1,502.34
  6. Step 6: Final answer
    x = 610.15

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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.