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Finding the Fourth Proportional to 435.52, 653.64 and 306.46

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Solution

The fourth proportional to 435.52, 653.64 and 306.46 is: 459.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    435.52 : 653.64 = 306.46 : x
  2. Step 2: Convert to fraction form
    435.52/653.64 = 306.46/x
  3. Step 3: Cross multiply
    435.52x = 653.64 × 306.46
  4. Step 4: Simplify right side
    435.52x = 200,314.51
  5. Step 5: Solve for x
    x = 200,314.51/435.52
  6. Step 6: Final answer
    x = 459.94

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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.