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Finding the Fourth Proportional to 354,135.43, 488,692.64 and 192,987.01

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Solution

The fourth proportional to 354,135.43, 488,692.64 and 192,987.01 is: 266,314.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,135.43 : 488,692.64 = 192,987.01 : x
  2. Step 2: Convert to fraction form
    354,135.43/488,692.64 = 192,987.01/x
  3. Step 3: Cross multiply
    354,135.43x = 488,692.64 × 192,987.01
  4. Step 4: Simplify right side
    354,135.43x = 94,311,330,437.67
  5. Step 5: Solve for x
    x = 94,311,330,437.67/354,135.43
  6. Step 6: Final answer
    x = 266,314.31

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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.