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Finding the Fourth Proportional to 313,007.94, 468,462.15 and 256,845.78

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Solution

The fourth proportional to 313,007.94, 468,462.15 and 256,845.78 is: 384,407.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,007.94 : 468,462.15 = 256,845.78 : x
  2. Step 2: Convert to fraction form
    313,007.94/468,462.15 = 256,845.78/x
  3. Step 3: Cross multiply
    313,007.94x = 468,462.15 × 256,845.78
  4. Step 4: Simplify right side
    313,007.94x = 120,322,526,317.23
  5. Step 5: Solve for x
    x = 120,322,526,317.23/313,007.94
  6. Step 6: Final answer
    x = 384,407.27

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1.5x scale

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.