Home / 230,435.55-317,975.37-128,453.31

Finding the Fourth Proportional to 230,435.55, 317,975.37 and 128,453.31

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Solution

The fourth proportional to 230,435.55, 317,975.37 and 128,453.31 is: 177,251.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,435.55 : 317,975.37 = 128,453.31 : x
  2. Step 2: Convert to fraction form
    230,435.55/317,975.37 = 128,453.31/x
  3. Step 3: Cross multiply
    230,435.55x = 317,975.37 × 128,453.31
  4. Step 4: Simplify right side
    230,435.55x = 40,844,988,774.97
  5. Step 5: Solve for x
    x = 40,844,988,774.97/230,435.55
  6. Step 6: Final answer
    x = 177,251.25

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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.