Home / 278,461.24-383,986.04-165,262.12

Finding the Fourth Proportional to 278,461.24, 383,986.04 and 165,262.12

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Solution

The fourth proportional to 278,461.24, 383,986.04 and 165,262.12 is: 227,889.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,461.24 : 383,986.04 = 165,262.12 : x
  2. Step 2: Convert to fraction form
    278,461.24/383,986.04 = 165,262.12/x
  3. Step 3: Cross multiply
    278,461.24x = 383,986.04 × 165,262.12
  4. Step 4: Simplify right side
    278,461.24x = 63,458,347,020.80
  5. Step 5: Solve for x
    x = 63,458,347,020.80/278,461.24
  6. Step 6: Final answer
    x = 227,889.34

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1.5x scale

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.