Home / 230,904.39-318,653.47-128,926.41

Finding the Fourth Proportional to 230,904.39, 318,653.47 and 128,926.41

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Solution

The fourth proportional to 230,904.39, 318,653.47 and 128,926.41 is: 177,921.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,904.39 : 318,653.47 = 128,926.41 : x
  2. Step 2: Convert to fraction form
    230,904.39/318,653.47 = 128,926.41/x
  3. Step 3: Cross multiply
    230,904.39x = 318,653.47 × 128,926.41
  4. Step 4: Simplify right side
    230,904.39x = 41,082,846,887.35
  5. Step 5: Solve for x
    x = 41,082,846,887.35/230,904.39
  6. Step 6: Final answer
    x = 177,921.46

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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.