Home / 348,881.28-481,204.55-320,291.72

Finding the Fourth Proportional to 348,881.28, 481,204.55 and 320,291.72

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Solution

The fourth proportional to 348,881.28, 481,204.55 and 320,291.72 is: 441,771.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,881.28 : 481,204.55 = 320,291.72 : x
  2. Step 2: Convert to fraction form
    348,881.28/481,204.55 = 320,291.72/x
  3. Step 3: Cross multiply
    348,881.28x = 481,204.55 × 320,291.72
  4. Step 4: Simplify right side
    348,881.28x = 154,125,831,388.91
  5. Step 5: Solve for x
    x = 154,125,831,388.91/348,881.28
  6. Step 6: Final answer
    x = 441,771.58

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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.