Home / 312,513.29-431,268.37-169,273.38

Finding the Fourth Proportional to 312,513.29, 431,268.37 and 169,273.38

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Solution

The fourth proportional to 312,513.29, 431,268.37 and 169,273.38 is: 233,597.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,513.29 : 431,268.37 = 169,273.38 : x
  2. Step 2: Convert to fraction form
    312,513.29/431,268.37 = 169,273.38/x
  3. Step 3: Cross multiply
    312,513.29x = 431,268.37 × 169,273.38
  4. Step 4: Simplify right side
    312,513.29x = 73,002,254,676.99
  5. Step 5: Solve for x
    x = 73,002,254,676.99/312,513.29
  6. Step 6: Final answer
    x = 233,597.28

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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.