Home / 356,111.28-491,435-194,981.33

Finding the Fourth Proportional to 356,111.28, 491,435 and 194,981.33

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Solution

The fourth proportional to 356,111.28, 491,435 and 194,981.33 is: 269,075.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,111.28 : 491,435 = 194,981.33 : x
  2. Step 2: Convert to fraction form
    356,111.28/491,435 = 194,981.33/x
  3. Step 3: Cross multiply
    356,111.28x = 491,435 × 194,981.33
  4. Step 4: Simplify right side
    356,111.28x = 95,820,649,908.55
  5. Step 5: Solve for x
    x = 95,820,649,908.55/356,111.28
  6. Step 6: Final answer
    x = 269,075.02

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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.