Home / 400,137.98-552,182.63-218,849.35

Finding the Fourth Proportional to 400,137.98, 552,182.63 and 218,849.35

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Solution

The fourth proportional to 400,137.98, 552,182.63 and 218,849.35 is: 302,007.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,137.98 : 552,182.63 = 218,849.35 : x
  2. Step 2: Convert to fraction form
    400,137.98/552,182.63 = 218,849.35/x
  3. Step 3: Cross multiply
    400,137.98x = 552,182.63 × 218,849.35
  4. Step 4: Simplify right side
    400,137.98x = 120,844,809,656.79
  5. Step 5: Solve for x
    x = 120,844,809,656.79/400,137.98
  6. Step 6: Final answer
    x = 302,007.85

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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.