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Finding the Fourth Proportional to 445,779.77, 668,836.13 and 179,615.79

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Solution

The fourth proportional to 445,779.77, 668,836.13 and 179,615.79 is: 269,490.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,779.77 : 668,836.13 = 179,615.79 : x
  2. Step 2: Convert to fraction form
    445,779.77/668,836.13 = 179,615.79/x
  3. Step 3: Cross multiply
    445,779.77x = 668,836.13 × 179,615.79
  4. Step 4: Simplify right side
    445,779.77x = 120,133,528,972.41
  5. Step 5: Solve for x
    x = 120,133,528,972.41/445,779.77
  6. Step 6: Final answer
    x = 269,490.76

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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.