Home / 278,013.96-413,444.40-269,156.60

Finding the Fourth Proportional to 278,013.96, 413,444.40 and 269,156.60

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Solution

The fourth proportional to 278,013.96, 413,444.40 and 269,156.60 is: 400,272.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,013.96 : 413,444.40 = 269,156.60 : x
  2. Step 2: Convert to fraction form
    278,013.96/413,444.40 = 269,156.60/x
  3. Step 3: Cross multiply
    278,013.96x = 413,444.40 × 269,156.60
  4. Step 4: Simplify right side
    278,013.96x = 111,281,288,993.04
  5. Step 5: Solve for x
    x = 111,281,288,993.04/278,013.96
  6. Step 6: Final answer
    x = 400,272.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.