Home / 208,268.08-287,409.27-117,642.85

Finding the Fourth Proportional to 208,268.08, 287,409.27 and 117,642.85

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Solution

The fourth proportional to 208,268.08, 287,409.27 and 117,642.85 is: 162,346.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,268.08 : 287,409.27 = 117,642.85 : x
  2. Step 2: Convert to fraction form
    208,268.08/287,409.27 = 117,642.85/x
  3. Step 3: Cross multiply
    208,268.08x = 287,409.27 × 117,642.85
  4. Step 4: Simplify right side
    208,268.08x = 33,811,645,639.22
  5. Step 5: Solve for x
    x = 33,811,645,639.22/208,268.08
  6. Step 6: Final answer
    x = 162,346.75

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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.