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Finding the Fourth Proportional to 326,780.74, 450,999.71 and 183,540.78

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Solution

The fourth proportional to 326,780.74, 450,999.71 and 183,540.78 is: 253,310.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,780.74 : 450,999.71 = 183,540.78 : x
  2. Step 2: Convert to fraction form
    326,780.74/450,999.71 = 183,540.78/x
  3. Step 3: Cross multiply
    326,780.74x = 450,999.71 × 183,540.78
  4. Step 4: Simplify right side
    326,780.74x = 82,776,838,553.17
  5. Step 5: Solve for x
    x = 82,776,838,553.17/326,780.74
  6. Step 6: Final answer
    x = 253,310.03

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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.