Home / 311,760.12-430,192.40-175,785.96

Finding the Fourth Proportional to 311,760.12, 430,192.40 and 175,785.96

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Solution

The fourth proportional to 311,760.12, 430,192.40 and 175,785.96 is: 242,564.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,760.12 : 430,192.40 = 175,785.96 : x
  2. Step 2: Convert to fraction form
    311,760.12/430,192.40 = 175,785.96/x
  3. Step 3: Cross multiply
    311,760.12x = 430,192.40 × 175,785.96
  4. Step 4: Simplify right side
    311,760.12x = 75,621,784,018.70
  5. Step 5: Solve for x
    x = 75,621,784,018.70/311,760.12
  6. Step 6: Final answer
    x = 242,564.01

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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.