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Finding the Fourth Proportional to 550,133.28, 759,183.39 and 308,415.87

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Solution

The fourth proportional to 550,133.28, 759,183.39 and 308,415.87 is: 425,613.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,133.28 : 759,183.39 = 308,415.87 : x
  2. Step 2: Convert to fraction form
    550,133.28/759,183.39 = 308,415.87/x
  3. Step 3: Cross multiply
    550,133.28x = 759,183.39 × 308,415.87
  4. Step 4: Simplify right side
    550,133.28x = 234,144,205,716.40
  5. Step 5: Solve for x
    x = 234,144,205,716.40/550,133.28
  6. Step 6: Final answer
    x = 425,613.60

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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.