Home / 268,190.90-370,039.64-151,905.36

Finding the Fourth Proportional to 268,190.90, 370,039.64 and 151,905.36

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Solution

The fourth proportional to 268,190.90, 370,039.64 and 151,905.36 is: 209,593.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,190.90 : 370,039.64 = 151,905.36 : x
  2. Step 2: Convert to fraction form
    268,190.90/370,039.64 = 151,905.36/x
  3. Step 3: Cross multiply
    268,190.90x = 370,039.64 × 151,905.36
  4. Step 4: Simplify right side
    268,190.90x = 56,211,003,968.94
  5. Step 5: Solve for x
    x = 56,211,003,968.94/268,190.90
  6. Step 6: Final answer
    x = 209,593.26

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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.