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Finding the Fourth Proportional to 354,144.12, 488,704.64 and 192,995.67

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Solution

The fourth proportional to 354,144.12, 488,704.64 and 192,995.67 is: 266,326.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,144.12 : 488,704.64 = 192,995.67 : x
  2. Step 2: Convert to fraction form
    354,144.12/488,704.64 = 192,995.67/x
  3. Step 3: Cross multiply
    354,144.12x = 488,704.64 × 192,995.67
  4. Step 4: Simplify right side
    354,144.12x = 94,317,878,463.93
  5. Step 5: Solve for x
    x = 94,317,878,463.93/354,144.12
  6. Step 6: Final answer
    x = 266,326.26

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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.