Home / 313,975.40-470,963.10-126,890.60

Finding the Fourth Proportional to 313,975.40, 470,963.10 and 126,890.60

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Solution

The fourth proportional to 313,975.40, 470,963.10 and 126,890.60 is: 190,335.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,975.40 : 470,963.10 = 126,890.60 : x
  2. Step 2: Convert to fraction form
    313,975.40/470,963.10 = 126,890.60/x
  3. Step 3: Cross multiply
    313,975.40x = 470,963.10 × 126,890.60
  4. Step 4: Simplify right side
    313,975.40x = 59,760,790,336.86
  5. Step 5: Solve for x
    x = 59,760,790,336.86/313,975.40
  6. Step 6: Final answer
    x = 190,335.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.