Home / 225,824.40-311,678.28-130,317.84

Finding the Fourth Proportional to 225,824.40, 311,678.28 and 130,317.84

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Solution

The fourth proportional to 225,824.40, 311,678.28 and 130,317.84 is: 179,862.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,824.40 : 311,678.28 = 130,317.84 : x
  2. Step 2: Convert to fraction form
    225,824.40/311,678.28 = 130,317.84/x
  3. Step 3: Cross multiply
    225,824.40x = 311,678.28 × 130,317.84
  4. Step 4: Simplify right side
    225,824.40x = 40,617,240,224.52
  5. Step 5: Solve for x
    x = 40,617,240,224.52/225,824.40
  6. Step 6: Final answer
    x = 179,862.05

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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.