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Finding the Fourth Proportional to 560.81, 841.52 and 272.25

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Solution

The fourth proportional to 560.81, 841.52 and 272.25 is: 408.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    560.81 : 841.52 = 272.25 : x
  2. Step 2: Convert to fraction form
    560.81/841.52 = 272.25/x
  3. Step 3: Cross multiply
    560.81x = 841.52 × 272.25
  4. Step 4: Simplify right side
    560.81x = 229,104.50
  5. Step 5: Solve for x
    x = 229,104.50/560.81
  6. Step 6: Final answer
    x = 408.52

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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.