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Finding the Fourth Proportional to 508,198.38, 701,441.20 and 345,130.80

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Solution

The fourth proportional to 508,198.38, 701,441.20 and 345,130.80 is: 476,367.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,198.38 : 701,441.20 = 345,130.80 : x
  2. Step 2: Convert to fraction form
    508,198.38/701,441.20 = 345,130.80/x
  3. Step 3: Cross multiply
    508,198.38x = 701,441.20 × 345,130.80
  4. Step 4: Simplify right side
    508,198.38x = 242,088,962,508.96
  5. Step 5: Solve for x
    x = 242,088,962,508.96/508,198.38
  6. Step 6: Final answer
    x = 476,367.05

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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.