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Finding the Fourth Proportional to 435.53, 651.85 and 382.07

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Solution

The fourth proportional to 435.53, 651.85 and 382.07 is: 571.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    435.53 : 651.85 = 382.07 : x
  2. Step 2: Convert to fraction form
    435.53/651.85 = 382.07/x
  3. Step 3: Cross multiply
    435.53x = 651.85 × 382.07
  4. Step 4: Simplify right side
    435.53x = 249,052.33
  5. Step 5: Solve for x
    x = 249,052.33/435.53
  6. Step 6: Final answer
    x = 571.84

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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.