Home / 311,905.36-430,429.41-168,665.41

Finding the Fourth Proportional to 311,905.36, 430,429.41 and 168,665.41

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Solution

The fourth proportional to 311,905.36, 430,429.41 and 168,665.41 is: 232,758.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,905.36 : 430,429.41 = 168,665.41 : x
  2. Step 2: Convert to fraction form
    311,905.36/430,429.41 = 168,665.41/x
  3. Step 3: Cross multiply
    311,905.36x = 430,429.41 × 168,665.41
  4. Step 4: Simplify right side
    311,905.36x = 72,598,552,913.71
  5. Step 5: Solve for x
    x = 72,598,552,913.71/311,905.36
  6. Step 6: Final answer
    x = 232,758.27

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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.