Home / 355,731.14-491,074.41-210,491.26

Finding the Fourth Proportional to 355,731.14, 491,074.41 and 210,491.26

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Solution

The fourth proportional to 355,731.14, 491,074.41 and 210,491.26 is: 290,575.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,731.14 : 491,074.41 = 210,491.26 : x
  2. Step 2: Convert to fraction form
    355,731.14/491,074.41 = 210,491.26/x
  3. Step 3: Cross multiply
    355,731.14x = 491,074.41 × 210,491.26
  4. Step 4: Simplify right side
    355,731.14x = 103,366,871,314.66
  5. Step 5: Solve for x
    x = 103,366,871,314.66/355,731.14
  6. Step 6: Final answer
    x = 290,575.83

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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.