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Finding the Fourth Proportional to 279,040.68, 385,075.26 and 151,716.60

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Solution

The fourth proportional to 279,040.68, 385,075.26 and 151,716.60 is: 209,368.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,040.68 : 385,075.26 = 151,716.60 : x
  2. Step 2: Convert to fraction form
    279,040.68/385,075.26 = 151,716.60/x
  3. Step 3: Cross multiply
    279,040.68x = 385,075.26 × 151,716.60
  4. Step 4: Simplify right side
    279,040.68x = 58,422,309,191.32
  5. Step 5: Solve for x
    x = 58,422,309,191.32/279,040.68
  6. Step 6: Final answer
    x = 209,368.43

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.