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Finding the Fourth Proportional to 298,230.80, 446,690.10 and 264,988.40

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Solution

The fourth proportional to 298,230.80, 446,690.10 and 264,988.40 is: 396,899.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,230.80 : 446,690.10 = 264,988.40 : x
  2. Step 2: Convert to fraction form
    298,230.80/446,690.10 = 264,988.40/x
  3. Step 3: Cross multiply
    298,230.80x = 446,690.10 × 264,988.40
  4. Step 4: Simplify right side
    298,230.80x = 118,367,694,894.84
  5. Step 5: Solve for x
    x = 118,367,694,894.84/298,230.80
  6. Step 6: Final answer
    x = 396,899.63

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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.