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Finding the Fourth Proportional to 335.95, 504.08 and 153.40

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Solution

The fourth proportional to 335.95, 504.08 and 153.40 is: 230.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    335.95 : 504.08 = 153.40 : x
  2. Step 2: Convert to fraction form
    335.95/504.08 = 153.40/x
  3. Step 3: Cross multiply
    335.95x = 504.08 × 153.40
  4. Step 4: Simplify right side
    335.95x = 77,324.95
  5. Step 5: Solve for x
    x = 77,324.95/335.95
  6. Step 6: Final answer
    x = 230.17

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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.