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Finding the Fourth Proportional to 402,574.35, 603,960.40 and 200,265.92

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Solution

The fourth proportional to 402,574.35, 603,960.40 and 200,265.92 is: 300,448.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,574.35 : 603,960.40 = 200,265.92 : x
  2. Step 2: Convert to fraction form
    402,574.35/603,960.40 = 200,265.92/x
  3. Step 3: Cross multiply
    402,574.35x = 603,960.40 × 200,265.92
  4. Step 4: Simplify right side
    402,574.35x = 120,952,684,644.95
  5. Step 5: Solve for x
    x = 120,952,684,644.95/402,574.35
  6. Step 6: Final answer
    x = 300,448.06

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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.