Home / 312,403.37-431,116.02-169,162.97

Finding the Fourth Proportional to 312,403.37, 431,116.02 and 169,162.97

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Solution

The fourth proportional to 312,403.37, 431,116.02 and 169,162.97 is: 233,444.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,403.37 : 431,116.02 = 169,162.97 : x
  2. Step 2: Convert to fraction form
    312,403.37/431,116.02 = 169,162.97/x
  3. Step 3: Cross multiply
    312,403.37x = 431,116.02 × 169,162.97
  4. Step 4: Simplify right side
    312,403.37x = 72,928,866,357.78
  5. Step 5: Solve for x
    x = 72,928,866,357.78/312,403.37
  6. Step 6: Final answer
    x = 233,444.56

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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.