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Finding the Fourth Proportional to 400,271.40, 600,355.26 and 150,921

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Solution

The fourth proportional to 400,271.40, 600,355.26 and 150,921 is: 226,361.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,271.40 : 600,355.26 = 150,921 : x
  2. Step 2: Convert to fraction form
    400,271.40/600,355.26 = 150,921/x
  3. Step 3: Cross multiply
    400,271.40x = 600,355.26 × 150,921
  4. Step 4: Simplify right side
    400,271.40x = 90,606,216,194.46
  5. Step 5: Solve for x
    x = 90,606,216,194.46/400,271.40
  6. Step 6: Final answer
    x = 226,361.95

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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.