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Finding the Fourth Proportional to 218,553.54, 301,609.40 and 123,063.45

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Solution

The fourth proportional to 218,553.54, 301,609.40 and 123,063.45 is: 169,830.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,553.54 : 301,609.40 = 123,063.45 : x
  2. Step 2: Convert to fraction form
    218,553.54/301,609.40 = 123,063.45/x
  3. Step 3: Cross multiply
    218,553.54x = 301,609.40 × 123,063.45
  4. Step 4: Simplify right side
    218,553.54x = 37,117,093,316.43
  5. Step 5: Solve for x
    x = 37,117,093,316.43/218,553.54
  6. Step 6: Final answer
    x = 169,830.67

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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.