Home / 400,399.12-552,550.82-219,111.04

Finding the Fourth Proportional to 400,399.12, 552,550.82 and 219,111.04

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Solution

The fourth proportional to 400,399.12, 552,550.82 and 219,111.04 is: 302,373.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,399.12 : 552,550.82 = 219,111.04 : x
  2. Step 2: Convert to fraction form
    400,399.12/552,550.82 = 219,111.04/x
  3. Step 3: Cross multiply
    400,399.12x = 552,550.82 × 219,111.04
  4. Step 4: Simplify right side
    400,399.12x = 121,069,980,964.74
  5. Step 5: Solve for x
    x = 121,069,980,964.74/400,399.12
  6. Step 6: Final answer
    x = 302,373.25

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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.