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Finding the Fourth Proportional to 469,869.42, 648,414.41 and 255,009.63

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Solution

The fourth proportional to 469,869.42, 648,414.41 and 255,009.63 is: 351,910.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,869.42 : 648,414.41 = 255,009.63 : x
  2. Step 2: Convert to fraction form
    469,869.42/648,414.41 = 255,009.63/x
  3. Step 3: Cross multiply
    469,869.42x = 648,414.41 × 255,009.63
  4. Step 4: Simplify right side
    469,869.42x = 165,351,917,505.72
  5. Step 5: Solve for x
    x = 165,351,917,505.72/469,869.42
  6. Step 6: Final answer
    x = 351,910.36

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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.