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Finding the Fourth Proportional to 457,900.88, 631,900.68 and 256,692.56

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Solution

The fourth proportional to 457,900.88, 631,900.68 and 256,692.56 is: 354,234.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,900.88 : 631,900.68 = 256,692.56 : x
  2. Step 2: Convert to fraction form
    457,900.88/631,900.68 = 256,692.56/x
  3. Step 3: Cross multiply
    457,900.88x = 631,900.68 × 256,692.56
  4. Step 4: Simplify right side
    457,900.88x = 162,204,203,214.94
  5. Step 5: Solve for x
    x = 162,204,203,214.94/457,900.88
  6. Step 6: Final answer
    x = 354,234.31

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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.