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Finding the Fourth Proportional to 810.44, 1,216.06 and 377.54

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Solution

The fourth proportional to 810.44, 1,216.06 and 377.54 is: 566.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    810.44 : 1,216.06 = 377.54 : x
  2. Step 2: Convert to fraction form
    810.44/1,216.06 = 377.54/x
  3. Step 3: Cross multiply
    810.44x = 1,216.06 × 377.54
  4. Step 4: Simplify right side
    810.44x = 459,111.29
  5. Step 5: Solve for x
    x = 459,111.29/810.44
  6. Step 6: Final answer
    x = 566.50

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Half scale
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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.