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Finding the Fourth Proportional to 189,630.54, 284,445.72 and 56,507.40

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Solution

The fourth proportional to 189,630.54, 284,445.72 and 56,507.40 is: 84,761.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,630.54 : 284,445.72 = 56,507.40 : x
  2. Step 2: Convert to fraction form
    189,630.54/284,445.72 = 56,507.40/x
  3. Step 3: Cross multiply
    189,630.54x = 284,445.72 × 56,507.40
  4. Step 4: Simplify right side
    189,630.54x = 16,073,288,078.33
  5. Step 5: Solve for x
    x = 16,073,288,078.33/189,630.54
  6. Step 6: Final answer
    x = 84,761.07

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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.