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Finding the Fourth Proportional to 353.36, 526.42 and 349.52

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Solution

The fourth proportional to 353.36, 526.42 and 349.52 is: 520.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    353.36 : 526.42 = 349.52 : x
  2. Step 2: Convert to fraction form
    353.36/526.42 = 349.52/x
  3. Step 3: Cross multiply
    353.36x = 526.42 × 349.52
  4. Step 4: Simplify right side
    353.36x = 183,994.32
  5. Step 5: Solve for x
    x = 183,994.32/353.36
  6. Step 6: Final answer
    x = 520.70

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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.