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Finding the Fourth Proportional to 210,709.44, 290,776.32 and 125,939.52

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Solution

The fourth proportional to 210,709.44, 290,776.32 and 125,939.52 is: 173,794.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,709.44 : 290,776.32 = 125,939.52 : x
  2. Step 2: Convert to fraction form
    210,709.44/290,776.32 = 125,939.52/x
  3. Step 3: Cross multiply
    210,709.44x = 290,776.32 × 125,939.52
  4. Step 4: Simplify right side
    210,709.44x = 36,620,230,168.17
  5. Step 5: Solve for x
    x = 36,620,230,168.17/210,709.44
  6. Step 6: Final answer
    x = 173,794.92

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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.