Home / 400,215.42-552,310.46-218,923.21

Finding the Fourth Proportional to 400,215.42, 552,310.46 and 218,923.21

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Solution

The fourth proportional to 400,215.42, 552,310.46 and 218,923.21 is: 302,121.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,215.42 : 552,310.46 = 218,923.21 : x
  2. Step 2: Convert to fraction form
    400,215.42/552,310.46 = 218,923.21/x
  3. Step 3: Cross multiply
    400,215.42x = 552,310.46 × 218,923.21
  4. Step 4: Simplify right side
    400,215.42x = 120,913,579,236.51
  5. Step 5: Solve for x
    x = 120,913,579,236.51/400,215.42
  6. Step 6: Final answer
    x = 302,121.24

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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.