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Finding the Fourth Proportional to 365,299.16, 548,003.43 and 128,600.15

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Solution

The fourth proportional to 365,299.16, 548,003.43 and 128,600.15 is: 192,919.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,299.16 : 548,003.43 = 128,600.15 : x
  2. Step 2: Convert to fraction form
    365,299.16/548,003.43 = 128,600.15/x
  3. Step 3: Cross multiply
    365,299.16x = 548,003.43 × 128,600.15
  4. Step 4: Simplify right side
    365,299.16x = 70,473,320,558.50
  5. Step 5: Solve for x
    x = 70,473,320,558.50/365,299.16
  6. Step 6: Final answer
    x = 192,919.47

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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.