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Finding the Fourth Proportional to 623.42, 935.14 and 351.26

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Solution

The fourth proportional to 623.42, 935.14 and 351.26 is: 526.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    623.42 : 935.14 = 351.26 : x
  2. Step 2: Convert to fraction form
    623.42/935.14 = 351.26/x
  3. Step 3: Cross multiply
    623.42x = 935.14 × 351.26
  4. Step 4: Simplify right side
    623.42x = 328,477.28
  5. Step 5: Solve for x
    x = 328,477.28/623.42
  6. Step 6: Final answer
    x = 526.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.