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Finding the Fourth Proportional to 504.79, 756.90 and 230.72

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Solution

The fourth proportional to 504.79, 756.90 and 230.72 is: 345.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    504.79 : 756.90 = 230.72 : x
  2. Step 2: Convert to fraction form
    504.79/756.90 = 230.72/x
  3. Step 3: Cross multiply
    504.79x = 756.90 × 230.72
  4. Step 4: Simplify right side
    504.79x = 174,628.18
  5. Step 5: Solve for x
    x = 174,628.18/504.79
  6. Step 6: Final answer
    x = 345.94

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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.