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Finding the Fourth Proportional to 228,615.06, 315,493.83 and 130,496.28

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Solution

The fourth proportional to 228,615.06, 315,493.83 and 130,496.28 is: 180,087.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,615.06 : 315,493.83 = 130,496.28 : x
  2. Step 2: Convert to fraction form
    228,615.06/315,493.83 = 130,496.28/x
  3. Step 3: Cross multiply
    228,615.06x = 315,493.83 × 130,496.28
  4. Step 4: Simplify right side
    228,615.06x = 41,170,771,177.95
  5. Step 5: Solve for x
    x = 41,170,771,177.95/228,615.06
  6. Step 6: Final answer
    x = 180,087.75

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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.