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Finding the Fourth Proportional to 434.05, 599.05 and 247.60

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Solution

The fourth proportional to 434.05, 599.05 and 247.60 is: 341.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    434.05 : 599.05 = 247.60 : x
  2. Step 2: Convert to fraction form
    434.05/599.05 = 247.60/x
  3. Step 3: Cross multiply
    434.05x = 599.05 × 247.60
  4. Step 4: Simplify right side
    434.05x = 148,323.54
  5. Step 5: Solve for x
    x = 148,323.54/434.05
  6. Step 6: Final answer
    x = 341.72

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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.