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Finding the Fourth Proportional to 313,858.80, 433,129.43 and 170,621.92

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Solution

The fourth proportional to 313,858.80, 433,129.43 and 170,621.92 is: 235,460.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,858.80 : 433,129.43 = 170,621.92 : x
  2. Step 2: Convert to fraction form
    313,858.80/433,129.43 = 170,621.92/x
  3. Step 3: Cross multiply
    313,858.80x = 433,129.43 × 170,621.92
  4. Step 4: Simplify right side
    313,858.80x = 73,901,373,745.15
  5. Step 5: Solve for x
    x = 73,901,373,745.15/313,858.80
  6. Step 6: Final answer
    x = 235,460.58

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1.5x scale

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.