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Finding the Fourth Proportional to 298,541.45, 411,920.48 and 250,338.35

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Solution

The fourth proportional to 298,541.45, 411,920.48 and 250,338.35 is: 345,410.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,541.45 : 411,920.48 = 250,338.35 : x
  2. Step 2: Convert to fraction form
    298,541.45/411,920.48 = 250,338.35/x
  3. Step 3: Cross multiply
    298,541.45x = 411,920.48 × 250,338.35
  4. Step 4: Simplify right side
    298,541.45x = 103,119,491,860.65
  5. Step 5: Solve for x
    x = 103,119,491,860.65/298,541.45
  6. Step 6: Final answer
    x = 345,410.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.