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Finding the Fourth Proportional to 266,401, 399,725.52 and 116,621.56

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Solution

The fourth proportional to 266,401, 399,725.52 and 116,621.56 is: 174,986.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,401 : 399,725.52 = 116,621.56 : x
  2. Step 2: Convert to fraction form
    266,401/399,725.52 = 116,621.56/x
  3. Step 3: Cross multiply
    266,401x = 399,725.52 × 116,621.56
  4. Step 4: Simplify right side
    266,401x = 46,616,613,714.21
  5. Step 5: Solve for x
    x = 46,616,613,714.21/266,401
  6. Step 6: Final answer
    x = 174,986.63

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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.