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Finding the Fourth Proportional to 340,998.34, 511,571.33 and 130,636.28

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Solution

The fourth proportional to 340,998.34, 511,571.33 and 130,636.28 is: 195,982.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,998.34 : 511,571.33 = 130,636.28 : x
  2. Step 2: Convert to fraction form
    340,998.34/511,571.33 = 130,636.28/x
  3. Step 3: Cross multiply
    340,998.34x = 511,571.33 × 130,636.28
  4. Step 4: Simplify right side
    340,998.34x = 66,829,775,505.85
  5. Step 5: Solve for x
    x = 66,829,775,505.85/340,998.34
  6. Step 6: Final answer
    x = 195,982.70

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1.5x scale

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.