Home / 217,405.47-300,022.65-131,352.51

Finding the Fourth Proportional to 217,405.47, 300,022.65 and 131,352.51

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Solution

The fourth proportional to 217,405.47, 300,022.65 and 131,352.51 is: 181,268.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,405.47 : 300,022.65 = 131,352.51 : x
  2. Step 2: Convert to fraction form
    217,405.47/300,022.65 = 131,352.51/x
  3. Step 3: Cross multiply
    217,405.47x = 300,022.65 × 131,352.51
  4. Step 4: Simplify right side
    217,405.47x = 39,408,728,134.35
  5. Step 5: Solve for x
    x = 39,408,728,134.35/217,405.47
  6. Step 6: Final answer
    x = 181,268.34

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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.