Home / 421,667.21-581,914.46-230,680.60

Finding the Fourth Proportional to 421,667.21, 581,914.46 and 230,680.60

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Solution

The fourth proportional to 421,667.21, 581,914.46 and 230,680.60 is: 318,346.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,667.21 : 581,914.46 = 230,680.60 : x
  2. Step 2: Convert to fraction form
    421,667.21/581,914.46 = 230,680.60/x
  3. Step 3: Cross multiply
    421,667.21x = 581,914.46 × 230,680.60
  4. Step 4: Simplify right side
    421,667.21x = 134,236,376,781.48
  5. Step 5: Solve for x
    x = 134,236,376,781.48/421,667.21
  6. Step 6: Final answer
    x = 318,346.73

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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.