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Finding the Fourth Proportional to 492,958.94, 739,364.38 and 155,955.78

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Solution

The fourth proportional to 492,958.94, 739,364.38 and 155,955.78 is: 233,910.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,958.94 : 739,364.38 = 155,955.78 : x
  2. Step 2: Convert to fraction form
    492,958.94/739,364.38 = 155,955.78/x
  3. Step 3: Cross multiply
    492,958.94x = 739,364.38 × 155,955.78
  4. Step 4: Simplify right side
    492,958.94x = 115,308,148,587.12
  5. Step 5: Solve for x
    x = 115,308,148,587.12/492,958.94
  6. Step 6: Final answer
    x = 233,910.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.