Home / 217,080.36-299,580.10-126,421.72

Finding the Fourth Proportional to 217,080.36, 299,580.10 and 126,421.72

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Solution

The fourth proportional to 217,080.36, 299,580.10 and 126,421.72 is: 174,467.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,080.36 : 299,580.10 = 126,421.72 : x
  2. Step 2: Convert to fraction form
    217,080.36/299,580.10 = 126,421.72/x
  3. Step 3: Cross multiply
    217,080.36x = 299,580.10 × 126,421.72
  4. Step 4: Simplify right side
    217,080.36x = 37,873,431,519.77
  5. Step 5: Solve for x
    x = 37,873,431,519.77/217,080.36
  6. Step 6: Final answer
    x = 174,467.33

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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.