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Finding the Fourth Proportional to 484,419, 726,745.20 and 151,995

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Solution

The fourth proportional to 484,419, 726,745.20 and 151,995 is: 228,029.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,419 : 726,745.20 = 151,995 : x
  2. Step 2: Convert to fraction form
    484,419/726,745.20 = 151,995/x
  3. Step 3: Cross multiply
    484,419x = 726,745.20 × 151,995
  4. Step 4: Simplify right side
    484,419x = 110,461,636,674
  5. Step 5: Solve for x
    x = 110,461,636,674/484,419
  6. Step 6: Final answer
    x = 228,029.12

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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.