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Finding the Fourth Proportional to 610.45, 916.11 and 302.22

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Solution

The fourth proportional to 610.45, 916.11 and 302.22 is: 453.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    610.45 : 916.11 = 302.22 : x
  2. Step 2: Convert to fraction form
    610.45/916.11 = 302.22/x
  3. Step 3: Cross multiply
    610.45x = 916.11 × 302.22
  4. Step 4: Simplify right side
    610.45x = 276,866.76
  5. Step 5: Solve for x
    x = 276,866.76/610.45
  6. Step 6: Final answer
    x = 453.55

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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.