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Finding the Fourth Proportional to 489,716.20, 734,228.70 and 223,604.20

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Solution

The fourth proportional to 489,716.20, 734,228.70 and 223,604.20 is: 335,248.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,716.20 : 734,228.70 = 223,604.20 : x
  2. Step 2: Convert to fraction form
    489,716.20/734,228.70 = 223,604.20/x
  3. Step 3: Cross multiply
    489,716.20x = 734,228.70 × 223,604.20
  4. Step 4: Simplify right side
    489,716.20x = 164,176,621,080.54
  5. Step 5: Solve for x
    x = 164,176,621,080.54/489,716.20
  6. Step 6: Final answer
    x = 335,248.50

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1.5x scale

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.