Home / 280,153.32-386,595.84-159,277.56

Finding the Fourth Proportional to 280,153.32, 386,595.84 and 159,277.56

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Solution

The fourth proportional to 280,153.32, 386,595.84 and 159,277.56 is: 219,794.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,153.32 : 386,595.84 = 159,277.56 : x
  2. Step 2: Convert to fraction form
    280,153.32/386,595.84 = 159,277.56/x
  3. Step 3: Cross multiply
    280,153.32x = 386,595.84 × 159,277.56
  4. Step 4: Simplify right side
    280,153.32x = 61,576,042,101.35
  5. Step 5: Solve for x
    x = 61,576,042,101.35/280,153.32
  6. Step 6: Final answer
    x = 219,794.08

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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.