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Finding the Fourth Proportional to 228,473.82, 315,297.21 and 131,624.25

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Solution

The fourth proportional to 228,473.82, 315,297.21 and 131,624.25 is: 181,643.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,473.82 : 315,297.21 = 131,624.25 : x
  2. Step 2: Convert to fraction form
    228,473.82/315,297.21 = 131,624.25/x
  3. Step 3: Cross multiply
    228,473.82x = 315,297.21 × 131,624.25
  4. Step 4: Simplify right side
    228,473.82x = 41,500,758,793.34
  5. Step 5: Solve for x
    x = 41,500,758,793.34/228,473.82
  6. Step 6: Final answer
    x = 181,643.39

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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.