Home / 321,639.29-482,274.35-121,832.24

Finding the Fourth Proportional to 321,639.29, 482,274.35 and 121,832.24

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Solution

The fourth proportional to 321,639.29, 482,274.35 and 121,832.24 is: 182,678.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,639.29 : 482,274.35 = 121,832.24 : x
  2. Step 2: Convert to fraction form
    321,639.29/482,274.35 = 121,832.24/x
  3. Step 3: Cross multiply
    321,639.29x = 482,274.35 × 121,832.24
  4. Step 4: Simplify right side
    321,639.29x = 58,756,561,334.51
  5. Step 5: Solve for x
    x = 58,756,561,334.51/321,639.29
  6. Step 6: Final answer
    x = 182,678.44

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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.