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Finding the Fourth Proportional to 660.00, 910.74 and 365.19

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Solution

The fourth proportional to 660.00, 910.74 and 365.19 is: 503.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    660.00 : 910.74 = 365.19 : x
  2. Step 2: Convert to fraction form
    660.00/910.74 = 365.19/x
  3. Step 3: Cross multiply
    660.00x = 910.74 × 365.19
  4. Step 4: Simplify right side
    660.00x = 332,592.46
  5. Step 5: Solve for x
    x = 332,592.46/660.00
  6. Step 6: Final answer
    x = 503.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.