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Finding the Fourth Proportional to 301,236.85, 451,540 and 101,488.21

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Solution

The fourth proportional to 301,236.85, 451,540 and 101,488.21 is: 152,126.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,236.85 : 451,540 = 101,488.21 : x
  2. Step 2: Convert to fraction form
    301,236.85/451,540 = 101,488.21/x
  3. Step 3: Cross multiply
    301,236.85x = 451,540 × 101,488.21
  4. Step 4: Simplify right side
    301,236.85x = 45,825,986,343.40
  5. Step 5: Solve for x
    x = 45,825,986,343.40/301,236.85
  6. Step 6: Final answer
    x = 152,126.10

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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.