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Finding the Fourth Proportional to 298,292.20, 447,438.30 and 101,300.20

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Solution

The fourth proportional to 298,292.20, 447,438.30 and 101,300.20 is: 151,950.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,292.20 : 447,438.30 = 101,300.20 : x
  2. Step 2: Convert to fraction form
    298,292.20/447,438.30 = 101,300.20/x
  3. Step 3: Cross multiply
    298,292.20x = 447,438.30 × 101,300.20
  4. Step 4: Simplify right side
    298,292.20x = 45,325,589,277.66
  5. Step 5: Solve for x
    x = 45,325,589,277.66/298,292.20
  6. Step 6: Final answer
    x = 151,950.30

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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.