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Finding the Fourth Proportional to 701.34, 1,051.75 and 290.29

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Solution

The fourth proportional to 701.34, 1,051.75 and 290.29 is: 435.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    701.34 : 1,051.75 = 290.29 : x
  2. Step 2: Convert to fraction form
    701.34/1,051.75 = 290.29/x
  3. Step 3: Cross multiply
    701.34x = 1,051.75 × 290.29
  4. Step 4: Simplify right side
    701.34x = 305,312.51
  5. Step 5: Solve for x
    x = 305,312.51/701.34
  6. Step 6: Final answer
    x = 435.33

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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.