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Finding the Fourth Proportional to 274,361.15, 378,633.11 and 153,495.24

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Solution

The fourth proportional to 274,361.15, 378,633.11 and 153,495.24 is: 211,831.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,361.15 : 378,633.11 = 153,495.24 : x
  2. Step 2: Convert to fraction form
    274,361.15/378,633.11 = 153,495.24/x
  3. Step 3: Cross multiply
    274,361.15x = 378,633.11 × 153,495.24
  4. Step 4: Simplify right side
    274,361.15x = 58,118,379,323.92
  5. Step 5: Solve for x
    x = 58,118,379,323.92/274,361.15
  6. Step 6: Final answer
    x = 211,831.67

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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.