Home / 421,722.78-581,977.08-230,736.94

Finding the Fourth Proportional to 421,722.78, 581,977.08 and 230,736.94

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Solution

The fourth proportional to 421,722.78, 581,977.08 and 230,736.94 is: 318,416.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,722.78 : 581,977.08 = 230,736.94 : x
  2. Step 2: Convert to fraction form
    421,722.78/581,977.08 = 230,736.94/x
  3. Step 3: Cross multiply
    421,722.78x = 581,977.08 × 230,736.94
  4. Step 4: Simplify right side
    421,722.78x = 134,283,610,589.34
  5. Step 5: Solve for x
    x = 134,283,610,589.34/421,722.78
  6. Step 6: Final answer
    x = 318,416.78

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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.