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Finding the Fourth Proportional to 435.47, 651.99 and 401.45

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Solution

The fourth proportional to 435.47, 651.99 and 401.45 is: 601.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    435.47 : 651.99 = 401.45 : x
  2. Step 2: Convert to fraction form
    435.47/651.99 = 401.45/x
  3. Step 3: Cross multiply
    435.47x = 651.99 × 401.45
  4. Step 4: Simplify right side
    435.47x = 261,741.39
  5. Step 5: Solve for x
    x = 261,741.39/435.47
  6. Step 6: Final answer
    x = 601.05

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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.