Home / 220,031.70-303,208.26-156,190.74

Finding the Fourth Proportional to 220,031.70, 303,208.26 and 156,190.74

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Solution

The fourth proportional to 220,031.70, 303,208.26 and 156,190.74 is: 215,234.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,031.70 : 303,208.26 = 156,190.74 : x
  2. Step 2: Convert to fraction form
    220,031.70/303,208.26 = 156,190.74/x
  3. Step 3: Cross multiply
    220,031.70x = 303,208.26 × 156,190.74
  4. Step 4: Simplify right side
    220,031.70x = 47,358,322,503.51
  5. Step 5: Solve for x
    x = 47,358,322,503.51/220,031.70
  6. Step 6: Final answer
    x = 215,234.09

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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.