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Finding the Fourth Proportional to 313,857.98, 433,118.90 and 170,621.63

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Solution

The fourth proportional to 313,857.98, 433,118.90 and 170,621.63 is: 235,455.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,857.98 : 433,118.90 = 170,621.63 : x
  2. Step 2: Convert to fraction form
    313,857.98/433,118.90 = 170,621.63/x
  3. Step 3: Cross multiply
    313,857.98x = 433,118.90 × 170,621.63
  4. Step 4: Simplify right side
    313,857.98x = 73,899,449,683.10
  5. Step 5: Solve for x
    x = 73,899,449,683.10/313,857.98
  6. Step 6: Final answer
    x = 235,455.06

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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.