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Finding the Fourth Proportional to 320,257, 441,955.38 and 192,937.96

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Solution

The fourth proportional to 320,257, 441,955.38 and 192,937.96 is: 266,254.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,257 : 441,955.38 = 192,937.96 : x
  2. Step 2: Convert to fraction form
    320,257/441,955.38 = 192,937.96/x
  3. Step 3: Cross multiply
    320,257x = 441,955.38 × 192,937.96
  4. Step 4: Simplify right side
    320,257x = 85,269,969,428.22
  5. Step 5: Solve for x
    x = 85,269,969,428.22/320,257
  6. Step 6: Final answer
    x = 266,254.82

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1.5x scale

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.