Home / 227,056.32-311,068.80-218,543.40

Finding the Fourth Proportional to 227,056.32, 311,068.80 and 218,543.40

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Solution

The fourth proportional to 227,056.32, 311,068.80 and 218,543.40 is: 299,406.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,056.32 : 311,068.80 = 218,543.40 : x
  2. Step 2: Convert to fraction form
    227,056.32/311,068.80 = 218,543.40/x
  3. Step 3: Cross multiply
    227,056.32x = 311,068.80 × 218,543.40
  4. Step 4: Simplify right side
    227,056.32x = 67,982,033,185.92
  5. Step 5: Solve for x
    x = 67,982,033,185.92/227,056.32
  6. Step 6: Final answer
    x = 299,406.04

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.