Home / 280,481.28-387,073.44-153,166.56

Finding the Fourth Proportional to 280,481.28, 387,073.44 and 153,166.56

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Solution

The fourth proportional to 280,481.28, 387,073.44 and 153,166.56 is: 211,374.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,481.28 : 387,073.44 = 153,166.56 : x
  2. Step 2: Convert to fraction form
    280,481.28/387,073.44 = 153,166.56/x
  3. Step 3: Cross multiply
    280,481.28x = 387,073.44 × 153,166.56
  4. Step 4: Simplify right side
    280,481.28x = 59,286,707,272.17
  5. Step 5: Solve for x
    x = 59,286,707,272.17/280,481.28
  6. Step 6: Final answer
    x = 211,374.92

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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.