Home / 280,610.43-387,227.91-153,261.42

Finding the Fourth Proportional to 280,610.43, 387,227.91 and 153,261.42

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Solution

The fourth proportional to 280,610.43, 387,227.91 and 153,261.42 is: 211,492.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,610.43 : 387,227.91 = 153,261.42 : x
  2. Step 2: Convert to fraction form
    280,610.43/387,227.91 = 153,261.42/x
  3. Step 3: Cross multiply
    280,610.43x = 387,227.91 × 153,261.42
  4. Step 4: Simplify right side
    280,610.43x = 59,347,099,350.23
  5. Step 5: Solve for x
    x = 59,347,099,350.23/280,610.43
  6. Step 6: Final answer
    x = 211,492.85

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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.