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Finding the Fourth Proportional to 237,476.50, 327,713.60 and 128,579.96

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Solution

The fourth proportional to 237,476.50, 327,713.60 and 128,579.96 is: 177,438.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,476.50 : 327,713.60 = 128,579.96 : x
  2. Step 2: Convert to fraction form
    237,476.50/327,713.60 = 128,579.96/x
  3. Step 3: Cross multiply
    237,476.50x = 327,713.60 × 128,579.96
  4. Step 4: Simplify right side
    237,476.50x = 42,137,402,720.19
  5. Step 5: Solve for x
    x = 42,137,402,720.19/237,476.50
  6. Step 6: Final answer
    x = 177,438.20

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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.