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Finding the Fourth Proportional to 369,682.88, 554,466.48 and 120,363.20

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Solution

The fourth proportional to 369,682.88, 554,466.48 and 120,363.20 is: 180,525.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,682.88 : 554,466.48 = 120,363.20 : x
  2. Step 2: Convert to fraction form
    369,682.88/554,466.48 = 120,363.20/x
  3. Step 3: Cross multiply
    369,682.88x = 554,466.48 × 120,363.20
  4. Step 4: Simplify right side
    369,682.88x = 66,737,359,825.54
  5. Step 5: Solve for x
    x = 66,737,359,825.54/369,682.88
  6. Step 6: Final answer
    x = 180,525.97

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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.