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Finding the Fourth Proportional to 400,110.12, 552,166.20 and 218,811.24

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Solution

The fourth proportional to 400,110.12, 552,166.20 and 218,811.24 is: 301,967.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,110.12 : 552,166.20 = 218,811.24 : x
  2. Step 2: Convert to fraction form
    400,110.12/552,166.20 = 218,811.24/x
  3. Step 3: Cross multiply
    400,110.12x = 552,166.20 × 218,811.24
  4. Step 4: Simplify right side
    400,110.12x = 120,820,170,908.09
  5. Step 5: Solve for x
    x = 120,820,170,908.09/400,110.12
  6. Step 6: Final answer
    x = 301,967.30

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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.