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Finding the Fourth Proportional to 428,189.86, 590,893.87 and 237,204.82

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Solution

The fourth proportional to 428,189.86, 590,893.87 and 237,204.82 is: 327,338.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,189.86 : 590,893.87 = 237,204.82 : x
  2. Step 2: Convert to fraction form
    428,189.86/590,893.87 = 237,204.82/x
  3. Step 3: Cross multiply
    428,189.86x = 590,893.87 × 237,204.82
  4. Step 4: Simplify right side
    428,189.86x = 140,162,869,931.96
  5. Step 5: Solve for x
    x = 140,162,869,931.96/428,189.86
  6. Step 6: Final answer
    x = 327,338.14

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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.