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Finding the Fourth Proportional to 597.40, 895.78 and 272.40

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Solution

The fourth proportional to 597.40, 895.78 and 272.40 is: 408.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    597.40 : 895.78 = 272.40 : x
  2. Step 2: Convert to fraction form
    597.40/895.78 = 272.40/x
  3. Step 3: Cross multiply
    597.40x = 895.78 × 272.40
  4. Step 4: Simplify right side
    597.40x = 244,010.47
  5. Step 5: Solve for x
    x = 244,010.47/597.40
  6. Step 6: Final answer
    x = 408.45

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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.