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Finding the Fourth Proportional to 610.76, 916.16 and 350.64

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Solution

The fourth proportional to 610.76, 916.16 and 350.64 is: 525.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    610.76 : 916.16 = 350.64 : x
  2. Step 2: Convert to fraction form
    610.76/916.16 = 350.64/x
  3. Step 3: Cross multiply
    610.76x = 916.16 × 350.64
  4. Step 4: Simplify right side
    610.76x = 321,242.34
  5. Step 5: Solve for x
    x = 321,242.34/610.76
  6. Step 6: Final answer
    x = 525.97

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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.