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Finding the Fourth Proportional to 612.36, 845.05 and 332.59

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Solution

The fourth proportional to 612.36, 845.05 and 332.59 is: 458.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    612.36 : 845.05 = 332.59 : x
  2. Step 2: Convert to fraction form
    612.36/845.05 = 332.59/x
  3. Step 3: Cross multiply
    612.36x = 845.05 × 332.59
  4. Step 4: Simplify right side
    612.36x = 281,058.12
  5. Step 5: Solve for x
    x = 281,058.12/612.36
  6. Step 6: Final answer
    x = 458.98

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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.