Home / 315,249.12-434,980.08-200,573.28

Finding the Fourth Proportional to 315,249.12, 434,980.08 and 200,573.28

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Solution

The fourth proportional to 315,249.12, 434,980.08 and 200,573.28 is: 276,750.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,249.12 : 434,980.08 = 200,573.28 : x
  2. Step 2: Convert to fraction form
    315,249.12/434,980.08 = 200,573.28/x
  3. Step 3: Cross multiply
    315,249.12x = 434,980.08 × 200,573.28
  4. Step 4: Simplify right side
    315,249.12x = 87,245,381,380.26
  5. Step 5: Solve for x
    x = 87,245,381,380.26/315,249.12
  6. Step 6: Final answer
    x = 276,750.59

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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.