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Finding the Fourth Proportional to 218,063.43, 300,883.42 and 127,401.89

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Solution

The fourth proportional to 218,063.43, 300,883.42 and 127,401.89 is: 175,788.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,063.43 : 300,883.42 = 127,401.89 : x
  2. Step 2: Convert to fraction form
    218,063.43/300,883.42 = 127,401.89/x
  3. Step 3: Cross multiply
    218,063.43x = 300,883.42 × 127,401.89
  4. Step 4: Simplify right side
    218,063.43x = 38,333,114,873.25
  5. Step 5: Solve for x
    x = 38,333,114,873.25/218,063.43
  6. Step 6: Final answer
    x = 175,788.83

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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.