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Finding the Fourth Proportional to 289,484.38, 434,243.58 and 111,992.32

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Solution

The fourth proportional to 289,484.38, 434,243.58 and 111,992.32 is: 167,995.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,484.38 : 434,243.58 = 111,992.32 : x
  2. Step 2: Convert to fraction form
    289,484.38/434,243.58 = 111,992.32/x
  3. Step 3: Cross multiply
    289,484.38x = 434,243.58 × 111,992.32
  4. Step 4: Simplify right side
    289,484.38x = 48,631,946,722.10
  5. Step 5: Solve for x
    x = 48,631,946,722.10/289,484.38
  6. Step 6: Final answer
    x = 167,995.06

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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.