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Finding the Fourth Proportional to 421,662.89, 581,908.53 and 230,676.27

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Solution

The fourth proportional to 421,662.89, 581,908.53 and 230,676.27 is: 318,340.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,662.89 : 581,908.53 = 230,676.27 : x
  2. Step 2: Convert to fraction form
    421,662.89/581,908.53 = 230,676.27/x
  3. Step 3: Cross multiply
    421,662.89x = 581,908.53 × 230,676.27
  4. Step 4: Simplify right side
    421,662.89x = 134,232,489,181.58
  5. Step 5: Solve for x
    x = 134,232,489,181.58/421,662.89
  6. Step 6: Final answer
    x = 318,340.77

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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.