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Finding the Fourth Proportional to 621.95, 933.53 and 297.54

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Solution

The fourth proportional to 621.95, 933.53 and 297.54 is: 446.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    621.95 : 933.53 = 297.54 : x
  2. Step 2: Convert to fraction form
    621.95/933.53 = 297.54/x
  3. Step 3: Cross multiply
    621.95x = 933.53 × 297.54
  4. Step 4: Simplify right side
    621.95x = 277,762.52
  5. Step 5: Solve for x
    x = 277,762.52/621.95
  6. Step 6: Final answer
    x = 446.60

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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.