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Finding the Fourth Proportional to 360,759.76, 498,048.68 and 217,556.08

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Solution

The fourth proportional to 360,759.76, 498,048.68 and 217,556.08 is: 300,348.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,759.76 : 498,048.68 = 217,556.08 : x
  2. Step 2: Convert to fraction form
    360,759.76/498,048.68 = 217,556.08/x
  3. Step 3: Cross multiply
    360,759.76x = 498,048.68 × 217,556.08
  4. Step 4: Simplify right side
    360,759.76x = 108,353,518,469.97
  5. Step 5: Solve for x
    x = 108,353,518,469.97/360,759.76
  6. Step 6: Final answer
    x = 300,348.13

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1.5x scale

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.