Home / 281,003.75-387,784.33-151,941.33

Finding the Fourth Proportional to 281,003.75, 387,784.33 and 151,941.33

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Solution

The fourth proportional to 281,003.75, 387,784.33 and 151,941.33 is: 209,678.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,003.75 : 387,784.33 = 151,941.33 : x
  2. Step 2: Convert to fraction form
    281,003.75/387,784.33 = 151,941.33/x
  3. Step 3: Cross multiply
    281,003.75x = 387,784.33 × 151,941.33
  4. Step 4: Simplify right side
    281,003.75x = 58,920,464,534.58
  5. Step 5: Solve for x
    x = 58,920,464,534.58/281,003.75
  6. Step 6: Final answer
    x = 209,678.57

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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.