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Finding the Fourth Proportional to 348,858, 523,365 and 127,242

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Solution

The fourth proportional to 348,858, 523,365 and 127,242 is: 190,891.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,858 : 523,365 = 127,242 : x
  2. Step 2: Convert to fraction form
    348,858/523,365 = 127,242/x
  3. Step 3: Cross multiply
    348,858x = 523,365 × 127,242
  4. Step 4: Simplify right side
    348,858x = 66,594,009,330
  5. Step 5: Solve for x
    x = 66,594,009,330/348,858
  6. Step 6: Final answer
    x = 190,891.45

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