Home / 280,103.32-386,526.86-159,227.56

Finding the Fourth Proportional to 280,103.32, 386,526.86 and 159,227.56

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Solution

The fourth proportional to 280,103.32, 386,526.86 and 159,227.56 is: 219,725.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,103.32 : 386,526.86 = 159,227.56 : x
  2. Step 2: Convert to fraction form
    280,103.32/386,526.86 = 159,227.56/x
  3. Step 3: Cross multiply
    280,103.32x = 386,526.86 × 159,227.56
  4. Step 4: Simplify right side
    280,103.32x = 61,545,728,792.26
  5. Step 5: Solve for x
    x = 61,545,728,792.26/280,103.32
  6. Step 6: Final answer
    x = 219,725.10

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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.