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Finding the Fourth Proportional to 189,485.64, 284,228.46 and 56,367.81

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Solution

The fourth proportional to 189,485.64, 284,228.46 and 56,367.81 is: 84,551.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,485.64 : 284,228.46 = 56,367.81 : x
  2. Step 2: Convert to fraction form
    189,485.64/284,228.46 = 56,367.81/x
  3. Step 3: Cross multiply
    189,485.64x = 284,228.46 × 56,367.81
  4. Step 4: Simplify right side
    189,485.64x = 16,021,335,829.87
  5. Step 5: Solve for x
    x = 16,021,335,829.87/189,485.64
  6. Step 6: Final answer
    x = 84,551.72

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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.