Home / 225,779.04-311,607.36-130,318.56

Finding the Fourth Proportional to 225,779.04, 311,607.36 and 130,318.56

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Solution

The fourth proportional to 225,779.04, 311,607.36 and 130,318.56 is: 179,858.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,779.04 : 311,607.36 = 130,318.56 : x
  2. Step 2: Convert to fraction form
    225,779.04/311,607.36 = 130,318.56/x
  3. Step 3: Cross multiply
    225,779.04x = 311,607.36 × 130,318.56
  4. Step 4: Simplify right side
    225,779.04x = 40,608,222,440.60
  5. Step 5: Solve for x
    x = 40,608,222,440.60/225,779.04
  6. Step 6: Final answer
    x = 179,858.25

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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.