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Finding the Fourth Proportional to 294,780.60, 441,717.30 and 219,547.80

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Solution

The fourth proportional to 294,780.60, 441,717.30 and 219,547.80 is: 328,983.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,780.60 : 441,717.30 = 219,547.80 : x
  2. Step 2: Convert to fraction form
    294,780.60/441,717.30 = 219,547.80/x
  3. Step 3: Cross multiply
    294,780.60x = 441,717.30 × 219,547.80
  4. Step 4: Simplify right side
    294,780.60x = 96,978,061,436.94
  5. Step 5: Solve for x
    x = 96,978,061,436.94/294,780.60
  6. Step 6: Final answer
    x = 328,983.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.