Home / 217,008.09-299,451.81-121,494.51

Finding the Fourth Proportional to 217,008.09, 299,451.81 and 121,494.51

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Solution

The fourth proportional to 217,008.09, 299,451.81 and 121,494.51 is: 167,651.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,008.09 : 299,451.81 = 121,494.51 : x
  2. Step 2: Convert to fraction form
    217,008.09/299,451.81 = 121,494.51/x
  3. Step 3: Cross multiply
    217,008.09x = 299,451.81 × 121,494.51
  4. Step 4: Simplify right side
    217,008.09x = 36,381,750,924.56
  5. Step 5: Solve for x
    x = 36,381,750,924.56/217,008.09
  6. Step 6: Final answer
    x = 167,651.59

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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.