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Finding the Fourth Proportional to 228,588.56, 315,457.33 and 130,469.85

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Solution

The fourth proportional to 228,588.56, 315,457.33 and 130,469.85 is: 180,051.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,588.56 : 315,457.33 = 130,469.85 : x
  2. Step 2: Convert to fraction form
    228,588.56/315,457.33 = 130,469.85/x
  3. Step 3: Cross multiply
    228,588.56x = 315,457.33 × 130,469.85
  4. Step 4: Simplify right side
    228,588.56x = 41,157,668,949.21
  5. Step 5: Solve for x
    x = 41,157,668,949.21/228,588.56
  6. Step 6: Final answer
    x = 180,051.31

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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.