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Finding the Fourth Proportional to 505,361.12, 758,150.64 and 145,529.55

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Solution

The fourth proportional to 505,361.12, 758,150.64 and 145,529.55 is: 218,325.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,361.12 : 758,150.64 = 145,529.55 : x
  2. Step 2: Convert to fraction form
    505,361.12/758,150.64 = 145,529.55/x
  3. Step 3: Cross multiply
    505,361.12x = 758,150.64 × 145,529.55
  4. Step 4: Simplify right side
    505,361.12x = 110,333,321,471.41
  5. Step 5: Solve for x
    x = 110,333,321,471.41/505,361.12
  6. Step 6: Final answer
    x = 218,325.70

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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.