Home / 400,725.56-552,993.98-219,434.16

Finding the Fourth Proportional to 400,725.56, 552,993.98 and 219,434.16

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Solution

The fourth proportional to 400,725.56, 552,993.98 and 219,434.16 is: 302,815.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,725.56 : 552,993.98 = 219,434.16 : x
  2. Step 2: Convert to fraction form
    400,725.56/552,993.98 = 219,434.16/x
  3. Step 3: Cross multiply
    400,725.56x = 552,993.98 × 219,434.16
  4. Step 4: Simplify right side
    400,725.56x = 121,345,769,486.36
  5. Step 5: Solve for x
    x = 121,345,769,486.36/400,725.56
  6. Step 6: Final answer
    x = 302,815.15

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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.