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Finding the Fourth Proportional to 945.70, 1,417.83 and 329.23

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Solution

The fourth proportional to 945.70, 1,417.83 and 329.23 is: 493.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    945.70 : 1,417.83 = 329.23 : x
  2. Step 2: Convert to fraction form
    945.70/1,417.83 = 329.23/x
  3. Step 3: Cross multiply
    945.70x = 1,417.83 × 329.23
  4. Step 4: Simplify right side
    945.70x = 466,792.17
  5. Step 5: Solve for x
    x = 466,792.17/945.70
  6. Step 6: Final answer
    x = 493.59

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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.