Home / 421,558.12-581,767.14-230,579.56

Finding the Fourth Proportional to 421,558.12, 581,767.14 and 230,579.56

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Solution

The fourth proportional to 421,558.12, 581,767.14 and 230,579.56 is: 318,209.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,558.12 : 581,767.14 = 230,579.56 : x
  2. Step 2: Convert to fraction form
    421,558.12/581,767.14 = 230,579.56/x
  3. Step 3: Cross multiply
    421,558.12x = 581,767.14 × 230,579.56
  4. Step 4: Simplify right side
    421,558.12x = 134,143,611,163.66
  5. Step 5: Solve for x
    x = 134,143,611,163.66/421,558.12
  6. Step 6: Final answer
    x = 318,209.06

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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.