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Finding the Fourth Proportional to 485,959.15, 728,253.69 and 229,518.36

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Solution

The fourth proportional to 485,959.15, 728,253.69 and 229,518.36 is: 343,954.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,959.15 : 728,253.69 = 229,518.36 : x
  2. Step 2: Convert to fraction form
    485,959.15/728,253.69 = 229,518.36/x
  3. Step 3: Cross multiply
    485,959.15x = 728,253.69 × 229,518.36
  4. Step 4: Simplify right side
    485,959.15x = 167,147,591,732.06
  5. Step 5: Solve for x
    x = 167,147,591,732.06/485,959.15
  6. Step 6: Final answer
    x = 343,954.00

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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.