Home / 485,932.45-670,582.21-268,143.13

Finding the Fourth Proportional to 485,932.45, 670,582.21 and 268,143.13

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Solution

The fourth proportional to 485,932.45, 670,582.21 and 268,143.13 is: 370,034.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,932.45 : 670,582.21 = 268,143.13 : x
  2. Step 2: Convert to fraction form
    485,932.45/670,582.21 = 268,143.13/x
  3. Step 3: Cross multiply
    485,932.45x = 670,582.21 × 268,143.13
  4. Step 4: Simplify right side
    485,932.45x = 179,812,009,610.33
  5. Step 5: Solve for x
    x = 179,812,009,610.33/485,932.45
  6. Step 6: Final answer
    x = 370,034.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.