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Finding the Fourth Proportional to 914.03, 1,370.74 and 297.62

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Solution

The fourth proportional to 914.03, 1,370.74 and 297.62 is: 446.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    914.03 : 1,370.74 = 297.62 : x
  2. Step 2: Convert to fraction form
    914.03/1,370.74 = 297.62/x
  3. Step 3: Cross multiply
    914.03x = 1,370.74 × 297.62
  4. Step 4: Simplify right side
    914.03x = 407,951.30
  5. Step 5: Solve for x
    x = 407,951.30/914.03
  6. Step 6: Final answer
    x = 446.32

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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.