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Finding the Fourth Proportional to 150,471.50, 207,650.70 and 83,403.50

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Solution

The fourth proportional to 150,471.50, 207,650.70 and 83,403.50 is: 115,096.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,471.50 : 207,650.70 = 83,403.50 : x
  2. Step 2: Convert to fraction form
    150,471.50/207,650.70 = 83,403.50/x
  3. Step 3: Cross multiply
    150,471.50x = 207,650.70 × 83,403.50
  4. Step 4: Simplify right side
    150,471.50x = 17,318,795,157.45
  5. Step 5: Solve for x
    x = 17,318,795,157.45/150,471.50
  6. Step 6: Final answer
    x = 115,096.85

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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.