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Finding the Fourth Proportional to 186,942.60, 280,413.90 and 108,210.60

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Solution

The fourth proportional to 186,942.60, 280,413.90 and 108,210.60 is: 162,315.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,942.60 : 280,413.90 = 108,210.60 : x
  2. Step 2: Convert to fraction form
    186,942.60/280,413.90 = 108,210.60/x
  3. Step 3: Cross multiply
    186,942.60x = 280,413.90 × 108,210.60
  4. Step 4: Simplify right side
    186,942.60x = 30,343,756,367.34
  5. Step 5: Solve for x
    x = 30,343,756,367.34/186,942.60
  6. Step 6: Final answer
    x = 162,315.90

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1.5x scale

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.