Home / 400,235.12-552,338.70-218,936.24

Finding the Fourth Proportional to 400,235.12, 552,338.70 and 218,936.24

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Solution

The fourth proportional to 400,235.12, 552,338.70 and 218,936.24 is: 302,139.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,235.12 : 552,338.70 = 218,936.24 : x
  2. Step 2: Convert to fraction form
    400,235.12/552,338.70 = 218,936.24/x
  3. Step 3: Cross multiply
    400,235.12x = 552,338.70 × 218,936.24
  4. Step 4: Simplify right side
    400,235.12x = 120,926,958,184.49
  5. Step 5: Solve for x
    x = 120,926,958,184.49/400,235.12
  6. Step 6: Final answer
    x = 302,139.80

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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.