Home / 268,453.69-402,682.96-81,465.19

Finding the Fourth Proportional to 268,453.69, 402,682.96 and 81,465.19

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Solution

The fourth proportional to 268,453.69, 402,682.96 and 81,465.19 is: 122,198.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,453.69 : 402,682.96 = 81,465.19 : x
  2. Step 2: Convert to fraction form
    268,453.69/402,682.96 = 81,465.19/x
  3. Step 3: Cross multiply
    268,453.69x = 402,682.96 × 81,465.19
  4. Step 4: Simplify right side
    268,453.69x = 32,804,643,846.16
  5. Step 5: Solve for x
    x = 32,804,643,846.16/268,453.69
  6. Step 6: Final answer
    x = 122,198.52

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Why These Related Problems?

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