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Finding the Fourth Proportional to 933.52, 1,400.26 and 230.74

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Solution

The fourth proportional to 933.52, 1,400.26 and 230.74 is: 346.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    933.52 : 1,400.26 = 230.74 : x
  2. Step 2: Convert to fraction form
    933.52/1,400.26 = 230.74/x
  3. Step 3: Cross multiply
    933.52x = 1,400.26 × 230.74
  4. Step 4: Simplify right side
    933.52x = 323,095.99
  5. Step 5: Solve for x
    x = 323,095.99/933.52
  6. Step 6: Final answer
    x = 346.11

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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.