Home / 281,273.04-421,864.17-103,863.60

Finding the Fourth Proportional to 281,273.04, 421,864.17 and 103,863.60

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Solution

The fourth proportional to 281,273.04, 421,864.17 and 103,863.60 is: 155,778.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,273.04 : 421,864.17 = 103,863.60 : x
  2. Step 2: Convert to fraction form
    281,273.04/421,864.17 = 103,863.60/x
  3. Step 3: Cross multiply
    281,273.04x = 421,864.17 × 103,863.60
  4. Step 4: Simplify right side
    281,273.04x = 43,816,331,407.21
  5. Step 5: Solve for x
    x = 43,816,331,407.21/281,273.04
  6. Step 6: Final answer
    x = 155,778.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.