Home / 208,289.28-287,436.96-117,645.42

Finding the Fourth Proportional to 208,289.28, 287,436.96 and 117,645.42

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Solution

The fourth proportional to 208,289.28, 287,436.96 and 117,645.42 is: 162,349.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,289.28 : 287,436.96 = 117,645.42 : x
  2. Step 2: Convert to fraction form
    208,289.28/287,436.96 = 117,645.42/x
  3. Step 3: Cross multiply
    208,289.28x = 287,436.96 × 117,645.42
  4. Step 4: Simplify right side
    208,289.28x = 33,815,641,882.72
  5. Step 5: Solve for x
    x = 33,815,641,882.72/208,289.28
  6. Step 6: Final answer
    x = 162,349.41

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1.5x scale

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.