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Finding the Fourth Proportional to 421,084.85, 581,098.61 and 230,098.25

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Solution

The fourth proportional to 421,084.85, 581,098.61 and 230,098.25 is: 317,536.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,084.85 : 581,098.61 = 230,098.25 : x
  2. Step 2: Convert to fraction form
    421,084.85/581,098.61 = 230,098.25/x
  3. Step 3: Cross multiply
    421,084.85x = 581,098.61 × 230,098.25
  4. Step 4: Simplify right side
    421,084.85x = 133,709,770,261.03
  5. Step 5: Solve for x
    x = 133,709,770,261.03/421,084.85
  6. Step 6: Final answer
    x = 317,536.40

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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.