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Finding the Fourth Proportional to 1,232.21, 1,847.81 and 615.18

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Solution

The fourth proportional to 1,232.21, 1,847.81 and 615.18 is: 922.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,232.21 : 1,847.81 = 615.18 : x
  2. Step 2: Convert to fraction form
    1,232.21/1,847.81 = 615.18/x
  3. Step 3: Cross multiply
    1,232.21x = 1,847.81 × 615.18
  4. Step 4: Simplify right side
    1,232.21x = 1,136,735.76
  5. Step 5: Solve for x
    x = 1,136,735.76/1,232.21
  6. Step 6: Final answer
    x = 922.52

Related Problems

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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.