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Finding the Fourth Proportional to 289,940.72, 400,117.32 and 162,619.04

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Solution

The fourth proportional to 289,940.72, 400,117.32 and 162,619.04 is: 224,413.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,940.72 : 400,117.32 = 162,619.04 : x
  2. Step 2: Convert to fraction form
    289,940.72/400,117.32 = 162,619.04/x
  3. Step 3: Cross multiply
    289,940.72x = 400,117.32 × 162,619.04
  4. Step 4: Simplify right side
    289,940.72x = 65,066,695,466.07
  5. Step 5: Solve for x
    x = 65,066,695,466.07/289,940.72
  6. Step 6: Final answer
    x = 224,413.79

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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.