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Finding the Fourth Proportional to 228,589.56, 315,458.71 and 130,470.85

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Solution

The fourth proportional to 228,589.56, 315,458.71 and 130,470.85 is: 180,052.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,589.56 : 315,458.71 = 130,470.85 : x
  2. Step 2: Convert to fraction form
    228,589.56/315,458.71 = 130,470.85/x
  3. Step 3: Cross multiply
    228,589.56x = 315,458.71 × 130,470.85
  4. Step 4: Simplify right side
    228,589.56x = 41,158,166,033.60
  5. Step 5: Solve for x
    x = 41,158,166,033.60/228,589.56
  6. Step 6: Final answer
    x = 180,052.69

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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.