Home / 353,115.79-487,289.61-200,168.10

Finding the Fourth Proportional to 353,115.79, 487,289.61 and 200,168.10

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Solution

The fourth proportional to 353,115.79, 487,289.61 and 200,168.10 is: 276,226.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,115.79 : 487,289.61 = 200,168.10 : x
  2. Step 2: Convert to fraction form
    353,115.79/487,289.61 = 200,168.10/x
  3. Step 3: Cross multiply
    353,115.79x = 487,289.61 × 200,168.10
  4. Step 4: Simplify right side
    353,115.79x = 97,539,835,383.44
  5. Step 5: Solve for x
    x = 97,539,835,383.44/353,115.79
  6. Step 6: Final answer
    x = 276,226.21

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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.