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Finding the Fourth Proportional to 351,419.78, 484,957.09 and 190,274.33

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Solution

The fourth proportional to 351,419.78, 484,957.09 and 190,274.33 is: 262,577.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,419.78 : 484,957.09 = 190,274.33 : x
  2. Step 2: Convert to fraction form
    351,419.78/484,957.09 = 190,274.33/x
  3. Step 3: Cross multiply
    351,419.78x = 484,957.09 × 190,274.33
  4. Step 4: Simplify right side
    351,419.78x = 92,274,884,427.13
  5. Step 5: Solve for x
    x = 92,274,884,427.13/351,419.78
  6. Step 6: Final answer
    x = 262,577.38

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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.