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Finding the Fourth Proportional to 225,555.84, 311,300.20 and 130,043.84

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Solution

The fourth proportional to 225,555.84, 311,300.20 and 130,043.84 is: 179,479.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,555.84 : 311,300.20 = 130,043.84 : x
  2. Step 2: Convert to fraction form
    225,555.84/311,300.20 = 130,043.84/x
  3. Step 3: Cross multiply
    225,555.84x = 311,300.20 × 130,043.84
  4. Step 4: Simplify right side
    225,555.84x = 40,482,673,400.77
  5. Step 5: Solve for x
    x = 40,482,673,400.77/225,555.84
  6. Step 6: Final answer
    x = 179,479.61

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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.