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Finding the Fourth Proportional to 428,171.76, 590,877.04 and 237,197.52

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Solution

The fourth proportional to 428,171.76, 590,877.04 and 237,197.52 is: 327,332.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,171.76 : 590,877.04 = 237,197.52 : x
  2. Step 2: Convert to fraction form
    428,171.76/590,877.04 = 237,197.52/x
  3. Step 3: Cross multiply
    428,171.76x = 590,877.04 × 237,197.52
  4. Step 4: Simplify right side
    428,171.76x = 140,154,568,512.94
  5. Step 5: Solve for x
    x = 140,154,568,512.94/428,171.76
  6. Step 6: Final answer
    x = 327,332.58

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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.