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Finding the Fourth Proportional to 369,684.88, 554,469.48 and 120,365.20

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Solution

The fourth proportional to 369,684.88, 554,469.48 and 120,365.20 is: 180,528.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,684.88 : 554,469.48 = 120,365.20 : x
  2. Step 2: Convert to fraction form
    369,684.88/554,469.48 = 120,365.20/x
  3. Step 3: Cross multiply
    369,684.88x = 554,469.48 × 120,365.20
  4. Step 4: Simplify right side
    369,684.88x = 66,738,829,854.10
  5. Step 5: Solve for x
    x = 66,738,829,854.10/369,684.88
  6. Step 6: Final answer
    x = 180,528.97

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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.