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Finding the Fourth Proportional to 188,901, 260,683.38 and 104,017.86

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Solution

The fourth proportional to 188,901, 260,683.38 and 104,017.86 is: 143,544.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,901 : 260,683.38 = 104,017.86 : x
  2. Step 2: Convert to fraction form
    188,901/260,683.38 = 104,017.86/x
  3. Step 3: Cross multiply
    188,901x = 260,683.38 × 104,017.86
  4. Step 4: Simplify right side
    188,901x = 27,115,727,325.17
  5. Step 5: Solve for x
    x = 27,115,727,325.17/188,901
  6. Step 6: Final answer
    x = 143,544.65

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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.