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Finding the Fourth Proportional to 150,558.75, 207,771.08 and 83,490.75

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Solution

The fourth proportional to 150,558.75, 207,771.08 and 83,490.75 is: 115,217.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,558.75 : 207,771.08 = 83,490.75 : x
  2. Step 2: Convert to fraction form
    150,558.75/207,771.08 = 83,490.75/x
  3. Step 3: Cross multiply
    150,558.75x = 207,771.08 × 83,490.75
  4. Step 4: Simplify right side
    150,558.75x = 17,346,962,880.06
  5. Step 5: Solve for x
    x = 17,346,962,880.06/150,558.75
  6. Step 6: Final answer
    x = 115,217.24

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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.