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Finding the Fourth Proportional to 355,579.61, 490,692.74 and 194,432.94

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Solution

The fourth proportional to 355,579.61, 490,692.74 and 194,432.94 is: 268,313.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,579.61 : 490,692.74 = 194,432.94 : x
  2. Step 2: Convert to fraction form
    355,579.61/490,692.74 = 194,432.94/x
  3. Step 3: Cross multiply
    355,579.61x = 490,692.74 × 194,432.94
  4. Step 4: Simplify right side
    355,579.61x = 95,406,831,102.69
  5. Step 5: Solve for x
    x = 95,406,831,102.69/355,579.61
  6. Step 6: Final answer
    x = 268,313.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.