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Finding the Fourth Proportional to 300,571.02, 450,545.49 and 142,679.34

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Solution

The fourth proportional to 300,571.02, 450,545.49 and 142,679.34 is: 213,871.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,571.02 : 450,545.49 = 142,679.34 : x
  2. Step 2: Convert to fraction form
    300,571.02/450,545.49 = 142,679.34/x
  3. Step 3: Cross multiply
    300,571.02x = 450,545.49 × 142,679.34
  4. Step 4: Simplify right side
    300,571.02x = 64,283,533,153.18
  5. Step 5: Solve for x
    x = 64,283,533,153.18/300,571.02
  6. Step 6: Final answer
    x = 213,871.36

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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.