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Finding the Fourth Proportional to 225,549.80, 311,291.88 and 130,037.84

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Solution

The fourth proportional to 225,549.80, 311,291.88 and 130,037.84 is: 179,471.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,549.80 : 311,291.88 = 130,037.84 : x
  2. Step 2: Convert to fraction form
    225,549.80/311,291.88 = 130,037.84/x
  3. Step 3: Cross multiply
    225,549.80x = 311,291.88 × 130,037.84
  4. Step 4: Simplify right side
    225,549.80x = 40,479,723,684.74
  5. Step 5: Solve for x
    x = 40,479,723,684.74/225,549.80
  6. Step 6: Final answer
    x = 179,471.33

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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.