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Finding the Fourth Proportional to 340,453.84, 469,811.12 and 195,155.43

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Solution

The fourth proportional to 340,453.84, 469,811.12 and 195,155.43 is: 269,305.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,453.84 : 469,811.12 = 195,155.43 : x
  2. Step 2: Convert to fraction form
    340,453.84/469,811.12 = 195,155.43/x
  3. Step 3: Cross multiply
    340,453.84x = 469,811.12 × 195,155.43
  4. Step 4: Simplify right side
    340,453.84x = 91,686,191,142.38
  5. Step 5: Solve for x
    x = 91,686,191,142.38/340,453.84
  6. Step 6: Final answer
    x = 269,305.79

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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.