Home / 280,082.39-386,511.92-159,223.67

Finding the Fourth Proportional to 280,082.39, 386,511.92 and 159,223.67

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Solution

The fourth proportional to 280,082.39, 386,511.92 and 159,223.67 is: 219,727.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,082.39 : 386,511.92 = 159,223.67 : x
  2. Step 2: Convert to fraction form
    280,082.39/386,511.92 = 159,223.67/x
  3. Step 3: Cross multiply
    280,082.39x = 386,511.92 × 159,223.67
  4. Step 4: Simplify right side
    280,082.39x = 61,541,845,718.98
  5. Step 5: Solve for x
    x = 61,541,845,718.98/280,082.39
  6. Step 6: Final answer
    x = 219,727.66

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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.