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Finding the Fourth Proportional to 623.70, 933.74 and 362.91

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Solution

The fourth proportional to 623.70, 933.74 and 362.91 is: 543.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    623.70 : 933.74 = 362.91 : x
  2. Step 2: Convert to fraction form
    623.70/933.74 = 362.91/x
  3. Step 3: Cross multiply
    623.70x = 933.74 × 362.91
  4. Step 4: Simplify right side
    623.70x = 338,863.58
  5. Step 5: Solve for x
    x = 338,863.58/623.70
  6. Step 6: Final answer
    x = 543.31

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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.