Home / 217,519.96-326,241.06-138,399.16

Finding the Fourth Proportional to 217,519.96, 326,241.06 and 138,399.16

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Solution

The fourth proportional to 217,519.96, 326,241.06 and 138,399.16 is: 207,574.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,519.96 : 326,241.06 = 138,399.16 : x
  2. Step 2: Convert to fraction form
    217,519.96/326,241.06 = 138,399.16/x
  3. Step 3: Cross multiply
    217,519.96x = 326,241.06 × 138,399.16
  4. Step 4: Simplify right side
    217,519.96x = 45,151,488,661.51
  5. Step 5: Solve for x
    x = 45,151,488,661.51/217,519.96
  6. Step 6: Final answer
    x = 207,574.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.