Home / 311,735.27-430,191.65-173,915.39

Finding the Fourth Proportional to 311,735.27, 430,191.65 and 173,915.39

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Solution

The fourth proportional to 311,735.27, 430,191.65 and 173,915.39 is: 240,001.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,735.27 : 430,191.65 = 173,915.39 : x
  2. Step 2: Convert to fraction form
    311,735.27/430,191.65 = 173,915.39/x
  3. Step 3: Cross multiply
    311,735.27x = 430,191.65 × 173,915.39
  4. Step 4: Simplify right side
    311,735.27x = 74,816,945,563.96
  5. Step 5: Solve for x
    x = 74,816,945,563.96/311,735.27
  6. Step 6: Final answer
    x = 240,001.55

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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.