Home / 225,795.12-311,526.36-130,289.28

Finding the Fourth Proportional to 225,795.12, 311,526.36 and 130,289.28

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Solution

The fourth proportional to 225,795.12, 311,526.36 and 130,289.28 is: 179,758.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,795.12 : 311,526.36 = 130,289.28 : x
  2. Step 2: Convert to fraction form
    225,795.12/311,526.36 = 130,289.28/x
  3. Step 3: Cross multiply
    225,795.12x = 311,526.36 × 130,289.28
  4. Step 4: Simplify right side
    225,795.12x = 40,588,545,145.42
  5. Step 5: Solve for x
    x = 40,588,545,145.42/225,795.12
  6. Step 6: Final answer
    x = 179,758.29

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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.