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Finding the Fourth Proportional to 398,833.80, 598,075.56 and 149,340.84

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Solution

The fourth proportional to 398,833.80, 598,075.56 and 149,340.84 is: 223,945.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,833.80 : 598,075.56 = 149,340.84 : x
  2. Step 2: Convert to fraction form
    398,833.80/598,075.56 = 149,340.84/x
  3. Step 3: Cross multiply
    398,833.80x = 598,075.56 × 149,340.84
  4. Step 4: Simplify right side
    398,833.80x = 89,317,106,513.87
  5. Step 5: Solve for x
    x = 89,317,106,513.87/398,833.80
  6. Step 6: Final answer
    x = 223,945.68

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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.