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Finding the Fourth Proportional to 354,238.77, 488,917.75 and 245,637.82

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Solution

The fourth proportional to 354,238.77, 488,917.75 and 245,637.82 is: 339,027.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,238.77 : 488,917.75 = 245,637.82 : x
  2. Step 2: Convert to fraction form
    354,238.77/488,917.75 = 245,637.82/x
  3. Step 3: Cross multiply
    354,238.77x = 488,917.75 × 245,637.82
  4. Step 4: Simplify right side
    354,238.77x = 120,096,687,285.91
  5. Step 5: Solve for x
    x = 120,096,687,285.91/354,238.77
  6. Step 6: Final answer
    x = 339,027.51

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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.