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Finding the Fourth Proportional to 459,311.90, 633,871.52 and 255,383.78

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Solution

The fourth proportional to 459,311.90, 633,871.52 and 255,383.78 is: 352,441.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,311.90 : 633,871.52 = 255,383.78 : x
  2. Step 2: Convert to fraction form
    459,311.90/633,871.52 = 255,383.78/x
  3. Step 3: Cross multiply
    459,311.90x = 633,871.52 × 255,383.78
  4. Step 4: Simplify right side
    459,311.90x = 161,880,500,365.67
  5. Step 5: Solve for x
    x = 161,880,500,365.67/459,311.90
  6. Step 6: Final answer
    x = 352,441.34

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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.