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Finding the Fourth Proportional to 315,184.80, 434,936.70 and 179,199.12

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Solution

The fourth proportional to 315,184.80, 434,936.70 and 179,199.12 is: 247,284.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,184.80 : 434,936.70 = 179,199.12 : x
  2. Step 2: Convert to fraction form
    315,184.80/434,936.70 = 179,199.12/x
  3. Step 3: Cross multiply
    315,184.80x = 434,936.70 × 179,199.12
  4. Step 4: Simplify right side
    315,184.80x = 77,940,273,895.70
  5. Step 5: Solve for x
    x = 77,940,273,895.70/315,184.80
  6. Step 6: Final answer
    x = 247,284.37

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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.