Home / 280,178.08-386,643.88-159,319.37

Finding the Fourth Proportional to 280,178.08, 386,643.88 and 159,319.37

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Solution

The fourth proportional to 280,178.08, 386,643.88 and 159,319.37 is: 219,859.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,178.08 : 386,643.88 = 159,319.37 : x
  2. Step 2: Convert to fraction form
    280,178.08/386,643.88 = 159,319.37/x
  3. Step 3: Cross multiply
    280,178.08x = 386,643.88 × 159,319.37
  4. Step 4: Simplify right side
    280,178.08x = 61,599,859,375.96
  5. Step 5: Solve for x
    x = 61,599,859,375.96/280,178.08
  6. Step 6: Final answer
    x = 219,859.67

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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.