Home / 421,717.58-581,969.58-230,731.73

Finding the Fourth Proportional to 421,717.58, 581,969.58 and 230,731.73

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Solution

The fourth proportional to 421,717.58, 581,969.58 and 230,731.73 is: 318,409.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,717.58 : 581,969.58 = 230,731.73 : x
  2. Step 2: Convert to fraction form
    421,717.58/581,969.58 = 230,731.73/x
  3. Step 3: Cross multiply
    421,717.58x = 581,969.58 × 230,731.73
  4. Step 4: Simplify right side
    421,717.58x = 134,278,848,000.77
  5. Step 5: Solve for x
    x = 134,278,848,000.77/421,717.58
  6. Step 6: Final answer
    x = 318,409.42

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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.