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Finding the Fourth Proportional to 354,083.40, 488,628.77 and 192,939.84

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Solution

The fourth proportional to 354,083.40, 488,628.77 and 192,939.84 is: 266,253.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,083.40 : 488,628.77 = 192,939.84 : x
  2. Step 2: Convert to fraction form
    354,083.40/488,628.77 = 192,939.84/x
  3. Step 3: Cross multiply
    354,083.40x = 488,628.77 × 192,939.84
  4. Step 4: Simplify right side
    354,083.40x = 94,275,956,703.20
  5. Step 5: Solve for x
    x = 94,275,956,703.20/354,083.40
  6. Step 6: Final answer
    x = 266,253.53

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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.