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Finding the Fourth Proportional to 356.94, 531.20 and 341.58

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Solution

The fourth proportional to 356.94, 531.20 and 341.58 is: 508.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    356.94 : 531.20 = 341.58 : x
  2. Step 2: Convert to fraction form
    356.94/531.20 = 341.58/x
  3. Step 3: Cross multiply
    356.94x = 531.20 × 341.58
  4. Step 4: Simplify right side
    356.94x = 181,445.59
  5. Step 5: Solve for x
    x = 181,445.59/356.94
  6. Step 6: Final answer
    x = 508.34

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.