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Finding the Fourth Proportional to 469,919.48, 648,471.50 and 255,054.96

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Solution

The fourth proportional to 469,919.48, 648,471.50 and 255,054.96 is: 351,966.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,919.48 : 648,471.50 = 255,054.96 : x
  2. Step 2: Convert to fraction form
    469,919.48/648,471.50 = 255,054.96/x
  3. Step 3: Cross multiply
    469,919.48x = 648,471.50 × 255,054.96
  4. Step 4: Simplify right side
    469,919.48x = 165,395,872,493.64
  5. Step 5: Solve for x
    x = 165,395,872,493.64/469,919.48
  6. Step 6: Final answer
    x = 351,966.41

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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.