Home / 740.30-1,110.54-220.23

Finding the Fourth Proportional to 740.30, 1,110.54 and 220.23

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Solution

The fourth proportional to 740.30, 1,110.54 and 220.23 is: 330.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    740.30 : 1,110.54 = 220.23 : x
  2. Step 2: Convert to fraction form
    740.30/1,110.54 = 220.23/x
  3. Step 3: Cross multiply
    740.30x = 1,110.54 × 220.23
  4. Step 4: Simplify right side
    740.30x = 244,574.22
  5. Step 5: Solve for x
    x = 244,574.22/740.30
  6. Step 6: Final answer
    x = 330.37

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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.