Home / 208,001.08-287,016.80-117,351.75

Finding the Fourth Proportional to 208,001.08, 287,016.80 and 117,351.75

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Solution

The fourth proportional to 208,001.08, 287,016.80 and 117,351.75 is: 161,931.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,001.08 : 287,016.80 = 117,351.75 : x
  2. Step 2: Convert to fraction form
    208,001.08/287,016.80 = 117,351.75/x
  3. Step 3: Cross multiply
    208,001.08x = 287,016.80 × 117,351.75
  4. Step 4: Simplify right side
    208,001.08x = 33,681,923,759.40
  5. Step 5: Solve for x
    x = 33,681,923,759.40/208,001.08
  6. Step 6: Final answer
    x = 161,931.48

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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.