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Finding the Fourth Proportional to 707.33, 1,060.93 and 220.25

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Solution

The fourth proportional to 707.33, 1,060.93 and 220.25 is: 330.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    707.33 : 1,060.93 = 220.25 : x
  2. Step 2: Convert to fraction form
    707.33/1,060.93 = 220.25/x
  3. Step 3: Cross multiply
    707.33x = 1,060.93 × 220.25
  4. Step 4: Simplify right side
    707.33x = 233,672.76
  5. Step 5: Solve for x
    x = 233,672.76/707.33
  6. Step 6: Final answer
    x = 330.36

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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.