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Finding the Fourth Proportional to 730.44, 1,095.60 and 243.36

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Solution

The fourth proportional to 730.44, 1,095.60 and 243.36 is: 365.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    730.44 : 1,095.60 = 243.36 : x
  2. Step 2: Convert to fraction form
    730.44/1,095.60 = 243.36/x
  3. Step 3: Cross multiply
    730.44x = 1,095.60 × 243.36
  4. Step 4: Simplify right side
    730.44x = 266,625.22
  5. Step 5: Solve for x
    x = 266,625.22/730.44
  6. Step 6: Final answer
    x = 365.02

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Double scale
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1.5x scale

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.