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Finding the Fourth Proportional to 228,439.51, 315,279.51 and 131,624.82

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Solution

The fourth proportional to 228,439.51, 315,279.51 and 131,624.82 is: 181,661.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,439.51 : 315,279.51 = 131,624.82 : x
  2. Step 2: Convert to fraction form
    228,439.51/315,279.51 = 131,624.82/x
  3. Step 3: Cross multiply
    228,439.51x = 315,279.51 × 131,624.82
  4. Step 4: Simplify right side
    228,439.51x = 41,498,608,753.44
  5. Step 5: Solve for x
    x = 41,498,608,753.44/228,439.51
  6. Step 6: Final answer
    x = 181,661.26

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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.