Home / 369,128.20-553,692.30-200,729.20

Finding the Fourth Proportional to 369,128.20, 553,692.30 and 200,729.20

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Solution

The fourth proportional to 369,128.20, 553,692.30 and 200,729.20 is: 301,093.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,128.20 : 553,692.30 = 200,729.20 : x
  2. Step 2: Convert to fraction form
    369,128.20/553,692.30 = 200,729.20/x
  3. Step 3: Cross multiply
    369,128.20x = 553,692.30 × 200,729.20
  4. Step 4: Simplify right side
    369,128.20x = 111,142,212,425.16
  5. Step 5: Solve for x
    x = 111,142,212,425.16/369,128.20
  6. Step 6: Final answer
    x = 301,093.80

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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.