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Finding the Fourth Proportional to 469.89, 705.23 and 250.76

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Solution

The fourth proportional to 469.89, 705.23 and 250.76 is: 376.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    469.89 : 705.23 = 250.76 : x
  2. Step 2: Convert to fraction form
    469.89/705.23 = 250.76/x
  3. Step 3: Cross multiply
    469.89x = 705.23 × 250.76
  4. Step 4: Simplify right side
    469.89x = 176,838.69
  5. Step 5: Solve for x
    x = 176,838.69/469.89
  6. Step 6: Final answer
    x = 376.34

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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.