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Finding the Fourth Proportional to 434.39, 599.47 and 237.90

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Solution

The fourth proportional to 434.39, 599.47 and 237.90 is: 328.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    434.39 : 599.47 = 237.90 : x
  2. Step 2: Convert to fraction form
    434.39/599.47 = 237.90/x
  3. Step 3: Cross multiply
    434.39x = 599.47 × 237.90
  4. Step 4: Simplify right side
    434.39x = 142,615.57
  5. Step 5: Solve for x
    x = 142,615.57/434.39
  6. Step 6: Final answer
    x = 328.31

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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.