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Finding the Fourth Proportional to 550,150.70, 759,244.47 and 308,448.92

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Solution

The fourth proportional to 550,150.70, 759,244.47 and 308,448.92 is: 425,679.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,150.70 : 759,244.47 = 308,448.92 : x
  2. Step 2: Convert to fraction form
    550,150.70/759,244.47 = 308,448.92/x
  3. Step 3: Cross multiply
    550,150.70x = 759,244.47 × 308,448.92
  4. Step 4: Simplify right side
    550,150.70x = 234,188,132,991.25
  5. Step 5: Solve for x
    x = 234,188,132,991.25/550,150.70
  6. Step 6: Final answer
    x = 425,679.97

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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.