Home / 305,827.20-458,740.80-261,540.45

Finding the Fourth Proportional to 305,827.20, 458,740.80 and 261,540.45

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Solution

The fourth proportional to 305,827.20, 458,740.80 and 261,540.45 is: 392,310.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,827.20 : 458,740.80 = 261,540.45 : x
  2. Step 2: Convert to fraction form
    305,827.20/458,740.80 = 261,540.45/x
  3. Step 3: Cross multiply
    305,827.20x = 458,740.80 × 261,540.45
  4. Step 4: Simplify right side
    305,827.20x = 119,979,275,265.36
  5. Step 5: Solve for x
    x = 119,979,275,265.36/305,827.20
  6. Step 6: Final answer
    x = 392,310.68

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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.