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Finding the Fourth Proportional to 560.81, 841.03 and 214.25

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Solution

The fourth proportional to 560.81, 841.03 and 214.25 is: 321.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    560.81 : 841.03 = 214.25 : x
  2. Step 2: Convert to fraction form
    560.81/841.03 = 214.25/x
  3. Step 3: Cross multiply
    560.81x = 841.03 × 214.25
  4. Step 4: Simplify right side
    560.81x = 180,185.54
  5. Step 5: Solve for x
    x = 180,185.54/560.81
  6. Step 6: Final answer
    x = 321.29

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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.