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Finding the Fourth Proportional to 356.02, 491.49 and 246.10

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Solution

The fourth proportional to 356.02, 491.49 and 246.10 is: 339.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    356.02 : 491.49 = 246.10 : x
  2. Step 2: Convert to fraction form
    356.02/491.49 = 246.10/x
  3. Step 3: Cross multiply
    356.02x = 491.49 × 246.10
  4. Step 4: Simplify right side
    356.02x = 120,955.69
  5. Step 5: Solve for x
    x = 120,955.69/356.02
  6. Step 6: Final answer
    x = 339.74

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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.