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Finding the Fourth Proportional to 623.47, 933.22 and 348.73

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Solution

The fourth proportional to 623.47, 933.22 and 348.73 is: 521.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    623.47 : 933.22 = 348.73 : x
  2. Step 2: Convert to fraction form
    623.47/933.22 = 348.73/x
  3. Step 3: Cross multiply
    623.47x = 933.22 × 348.73
  4. Step 4: Simplify right side
    623.47x = 325,438.61
  5. Step 5: Solve for x
    x = 325,438.61/623.47
  6. Step 6: Final answer
    x = 521.98

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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.