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Finding the Fourth Proportional to 428,195.30, 590,866.45 and 237,173.00

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Solution

The fourth proportional to 428,195.30, 590,866.45 and 237,173.00 is: 327,274.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,195.30 : 590,866.45 = 237,173.00 : x
  2. Step 2: Convert to fraction form
    428,195.30/590,866.45 = 237,173.00/x
  3. Step 3: Cross multiply
    428,195.30x = 590,866.45 × 237,173.00
  4. Step 4: Simplify right side
    428,195.30x = 140,137,564,998.59
  5. Step 5: Solve for x
    x = 140,137,564,998.59/428,195.30
  6. Step 6: Final answer
    x = 327,274.88

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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.