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Finding the Fourth Proportional to 563.49, 845.64 and 368.49

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Solution

The fourth proportional to 563.49, 845.64 and 368.49 is: 552.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    563.49 : 845.64 = 368.49 : x
  2. Step 2: Convert to fraction form
    563.49/845.64 = 368.49/x
  3. Step 3: Cross multiply
    563.49x = 845.64 × 368.49
  4. Step 4: Simplify right side
    563.49x = 311,607.11
  5. Step 5: Solve for x
    x = 311,607.11/563.49
  6. Step 6: Final answer
    x = 552.99

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Double scale
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Similar ratio
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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.