Home / 485,376.18-728,392.05-169,835.82

Finding the Fourth Proportional to 485,376.18, 728,392.05 and 169,835.82

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Solution

The fourth proportional to 485,376.18, 728,392.05 and 169,835.82 is: 254,868.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,376.18 : 728,392.05 = 169,835.82 : x
  2. Step 2: Convert to fraction form
    485,376.18/728,392.05 = 169,835.82/x
  3. Step 3: Cross multiply
    485,376.18x = 728,392.05 × 169,835.82
  4. Step 4: Simplify right side
    485,376.18x = 123,707,061,093.23
  5. Step 5: Solve for x
    x = 123,707,061,093.23/485,376.18
  6. Step 6: Final answer
    x = 254,868.42

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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.