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Finding the Fourth Proportional to 368,901.20, 553,351.80 and 335,658.80

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Solution

The fourth proportional to 368,901.20, 553,351.80 and 335,658.80 is: 503,488.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,901.20 : 553,351.80 = 335,658.80 : x
  2. Step 2: Convert to fraction form
    368,901.20/553,351.80 = 335,658.80/x
  3. Step 3: Cross multiply
    368,901.20x = 553,351.80 × 335,658.80
  4. Step 4: Simplify right side
    368,901.20x = 185,737,401,165.84
  5. Step 5: Solve for x
    x = 185,737,401,165.84/368,901.20
  6. Step 6: Final answer
    x = 503,488.20

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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.