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Finding the Fourth Proportional to 469,917.33, 648,468.52 and 255,052.78

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Solution

The fourth proportional to 469,917.33, 648,468.52 and 255,052.78 is: 351,963.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,917.33 : 648,468.52 = 255,052.78 : x
  2. Step 2: Convert to fraction form
    469,917.33/648,468.52 = 255,052.78/x
  3. Step 3: Cross multiply
    469,917.33x = 648,468.52 × 255,052.78
  4. Step 4: Simplify right side
    469,917.33x = 165,393,698,768.49
  5. Step 5: Solve for x
    x = 165,393,698,768.49/469,917.33
  6. Step 6: Final answer
    x = 351,963.39

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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.