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Finding the Fourth Proportional to 914.45, 1,370.83 and 366.50

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Solution

The fourth proportional to 914.45, 1,370.83 and 366.50 is: 549.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    914.45 : 1,370.83 = 366.50 : x
  2. Step 2: Convert to fraction form
    914.45/1,370.83 = 366.50/x
  3. Step 3: Cross multiply
    914.45x = 1,370.83 × 366.50
  4. Step 4: Simplify right side
    914.45x = 502,409.20
  5. Step 5: Solve for x
    x = 502,409.20/914.45
  6. Step 6: Final answer
    x = 549.41

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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.