Home / 642,782.76-964,238.04-238,083.18

Finding the Fourth Proportional to 642,782.76, 964,238.04 and 238,083.18

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Solution

The fourth proportional to 642,782.76, 964,238.04 and 238,083.18 is: 357,148.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,782.76 : 964,238.04 = 238,083.18 : x
  2. Step 2: Convert to fraction form
    642,782.76/964,238.04 = 238,083.18/x
  3. Step 3: Cross multiply
    642,782.76x = 964,238.04 × 238,083.18
  4. Step 4: Simplify right side
    642,782.76x = 229,568,858,840.17
  5. Step 5: Solve for x
    x = 229,568,858,840.17/642,782.76
  6. Step 6: Final answer
    x = 357,148.44

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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.