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Finding the Fourth Proportional to 354,932.37, 530,781.44 and 265,038.21

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Solution

The fourth proportional to 354,932.37, 530,781.44 and 265,038.21 is: 396,349.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,932.37 : 530,781.44 = 265,038.21 : x
  2. Step 2: Convert to fraction form
    354,932.37/530,781.44 = 265,038.21/x
  3. Step 3: Cross multiply
    354,932.37x = 530,781.44 × 265,038.21
  4. Step 4: Simplify right side
    354,932.37x = 140,677,361,433.63
  5. Step 5: Solve for x
    x = 140,677,361,433.63/354,932.37
  6. Step 6: Final answer
    x = 396,349.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.