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Finding the Fourth Proportional to 550,150.19, 759,243.78 and 308,448.42

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Solution

The fourth proportional to 550,150.19, 759,243.78 and 308,448.42 is: 425,679.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,150.19 : 759,243.78 = 308,448.42 : x
  2. Step 2: Convert to fraction form
    550,150.19/759,243.78 = 308,448.42/x
  3. Step 3: Cross multiply
    550,150.19x = 759,243.78 × 308,448.42
  4. Step 4: Simplify right side
    550,150.19x = 234,187,544,335.83
  5. Step 5: Solve for x
    x = 234,187,544,335.83/550,150.19
  6. Step 6: Final answer
    x = 425,679.29

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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.