Home / 431,290.59-646,629.70-164,826.51

Finding the Fourth Proportional to 431,290.59, 646,629.70 and 164,826.51

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Solution

The fourth proportional to 431,290.59, 646,629.70 and 164,826.51 is: 247,122.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,290.59 : 646,629.70 = 164,826.51 : x
  2. Step 2: Convert to fraction form
    431,290.59/646,629.70 = 164,826.51/x
  3. Step 3: Cross multiply
    431,290.59x = 646,629.70 × 164,826.51
  4. Step 4: Simplify right side
    431,290.59x = 106,581,716,713.35
  5. Step 5: Solve for x
    x = 106,581,716,713.35/431,290.59
  6. Step 6: Final answer
    x = 247,122.75

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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.