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Finding the Fourth Proportional to 597.40, 895.86 and 212.56

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Solution

The fourth proportional to 597.40, 895.86 and 212.56 is: 318.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    597.40 : 895.86 = 212.56 : x
  2. Step 2: Convert to fraction form
    597.40/895.86 = 212.56/x
  3. Step 3: Cross multiply
    597.40x = 895.86 × 212.56
  4. Step 4: Simplify right side
    597.40x = 190,424.00
  5. Step 5: Solve for x
    x = 190,424.00/597.40
  6. Step 6: Final answer
    x = 318.75

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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.