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Finding the Fourth Proportional to 434.09, 599.34 and 356.33

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Solution

The fourth proportional to 434.09, 599.34 and 356.33 is: 491.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    434.09 : 599.34 = 356.33 : x
  2. Step 2: Convert to fraction form
    434.09/599.34 = 356.33/x
  3. Step 3: Cross multiply
    434.09x = 599.34 × 356.33
  4. Step 4: Simplify right side
    434.09x = 213,559.83
  5. Step 5: Solve for x
    x = 213,559.83/434.09
  6. Step 6: Final answer
    x = 491.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.