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Finding the Fourth Proportional to 234,859.54, 324,071.70 and 131,488.38

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Solution

The fourth proportional to 234,859.54, 324,071.70 and 131,488.38 is: 181,434.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,859.54 : 324,071.70 = 131,488.38 : x
  2. Step 2: Convert to fraction form
    234,859.54/324,071.70 = 131,488.38/x
  3. Step 3: Cross multiply
    234,859.54x = 324,071.70 × 131,488.38
  4. Step 4: Simplify right side
    234,859.54x = 42,611,662,836.85
  5. Step 5: Solve for x
    x = 42,611,662,836.85/234,859.54
  6. Step 6: Final answer
    x = 181,434.67

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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.