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Finding the Fourth Proportional to 210,003.70, 314,977.20 and 83,736.85

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Solution

The fourth proportional to 210,003.70, 314,977.20 and 83,736.85 is: 125,593.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,003.70 : 314,977.20 = 83,736.85 : x
  2. Step 2: Convert to fraction form
    210,003.70/314,977.20 = 83,736.85/x
  3. Step 3: Cross multiply
    210,003.70x = 314,977.20 × 83,736.85
  4. Step 4: Simplify right side
    210,003.70x = 26,375,198,549.82
  5. Step 5: Solve for x
    x = 26,375,198,549.82/210,003.70
  6. Step 6: Final answer
    x = 125,593.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.