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Finding the Fourth Proportional to 404,620.10, 606,930.15 and 255,029.30

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Solution

The fourth proportional to 404,620.10, 606,930.15 and 255,029.30 is: 382,543.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,620.10 : 606,930.15 = 255,029.30 : x
  2. Step 2: Convert to fraction form
    404,620.10/606,930.15 = 255,029.30/x
  3. Step 3: Cross multiply
    404,620.10x = 606,930.15 × 255,029.30
  4. Step 4: Simplify right side
    404,620.10x = 154,784,971,303.40
  5. Step 5: Solve for x
    x = 154,784,971,303.40/404,620.10
  6. Step 6: Final answer
    x = 382,543.95

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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.