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Finding the Fourth Proportional to 428,226.60, 590,957.46 and 237,243

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Solution

The fourth proportional to 428,226.60, 590,957.46 and 237,243 is: 327,397.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,226.60 : 590,957.46 = 237,243 : x
  2. Step 2: Convert to fraction form
    428,226.60/590,957.46 = 237,243/x
  3. Step 3: Cross multiply
    428,226.60x = 590,957.46 × 237,243
  4. Step 4: Simplify right side
    428,226.60x = 140,200,520,682.78
  5. Step 5: Solve for x
    x = 140,200,520,682.78/428,226.60
  6. Step 6: Final answer
    x = 327,397.97

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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.