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Finding the Fourth Proportional to 349.38, 526.77 and 325.89

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Solution

The fourth proportional to 349.38, 526.77 and 325.89 is: 491.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    349.38 : 526.77 = 325.89 : x
  2. Step 2: Convert to fraction form
    349.38/526.77 = 325.89/x
  3. Step 3: Cross multiply
    349.38x = 526.77 × 325.89
  4. Step 4: Simplify right side
    349.38x = 171,669.08
  5. Step 5: Solve for x
    x = 171,669.08/349.38
  6. Step 6: Final answer
    x = 491.35

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.