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Finding the Fourth Proportional to 369,105.80, 553,658.70 and 228,943.40

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Solution

The fourth proportional to 369,105.80, 553,658.70 and 228,943.40 is: 343,415.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,105.80 : 553,658.70 = 228,943.40 : x
  2. Step 2: Convert to fraction form
    369,105.80/553,658.70 = 228,943.40/x
  3. Step 3: Cross multiply
    369,105.80x = 553,658.70 × 228,943.40
  4. Step 4: Simplify right side
    369,105.80x = 126,756,505,217.58
  5. Step 5: Solve for x
    x = 126,756,505,217.58/369,105.80
  6. Step 6: Final answer
    x = 343,415.10

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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.