Home / 278,566.56-384,769.71-214,810.04

Finding the Fourth Proportional to 278,566.56, 384,769.71 and 214,810.04

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Solution

The fourth proportional to 278,566.56, 384,769.71 and 214,810.04 is: 296,706.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,566.56 : 384,769.71 = 214,810.04 : x
  2. Step 2: Convert to fraction form
    278,566.56/384,769.71 = 214,810.04/x
  3. Step 3: Cross multiply
    278,566.56x = 384,769.71 × 214,810.04
  4. Step 4: Simplify right side
    278,566.56x = 82,652,397,757.81
  5. Step 5: Solve for x
    x = 82,652,397,757.81/278,566.56
  6. Step 6: Final answer
    x = 296,706.10

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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.