Home / 257,880.32-386,899.66-123,116.34

Finding the Fourth Proportional to 257,880.32, 386,899.66 and 123,116.34

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Solution

The fourth proportional to 257,880.32, 386,899.66 and 123,116.34 is: 184,712.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,880.32 : 386,899.66 = 123,116.34 : x
  2. Step 2: Convert to fraction form
    257,880.32/386,899.66 = 123,116.34/x
  3. Step 3: Cross multiply
    257,880.32x = 386,899.66 × 123,116.34
  4. Step 4: Simplify right side
    257,880.32x = 47,633,670,086.44
  5. Step 5: Solve for x
    x = 47,633,670,086.44/257,880.32
  6. Step 6: Final answer
    x = 184,712.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.