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Finding the Fourth Proportional to 228,318, 315,156.56 and 132,904.88

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Solution

The fourth proportional to 228,318, 315,156.56 and 132,904.88 is: 183,453.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,318 : 315,156.56 = 132,904.88 : x
  2. Step 2: Convert to fraction form
    228,318/315,156.56 = 132,904.88/x
  3. Step 3: Cross multiply
    228,318x = 315,156.56 × 132,904.88
  4. Step 4: Simplify right side
    228,318x = 41,885,844,788.01
  5. Step 5: Solve for x
    x = 41,885,844,788.01/228,318
  6. Step 6: Final answer
    x = 183,453.98

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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.