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Finding the Fourth Proportional to 274,428.80, 412,334.40 and 174,636.80

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Solution

The fourth proportional to 274,428.80, 412,334.40 and 174,636.80 is: 262,395.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,428.80 : 412,334.40 = 174,636.80 : x
  2. Step 2: Convert to fraction form
    274,428.80/412,334.40 = 174,636.80/x
  3. Step 3: Cross multiply
    274,428.80x = 412,334.40 × 174,636.80
  4. Step 4: Simplify right side
    274,428.80x = 72,008,760,145.92
  5. Step 5: Solve for x
    x = 72,008,760,145.92/274,428.80
  6. Step 6: Final answer
    x = 262,395.06

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1.5x scale

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.