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Finding the Fourth Proportional to 250,074.16, 345,102.34 and 136,896.91

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Solution

The fourth proportional to 250,074.16, 345,102.34 and 136,896.91 is: 188,917.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,074.16 : 345,102.34 = 136,896.91 : x
  2. Step 2: Convert to fraction form
    250,074.16/345,102.34 = 136,896.91/x
  3. Step 3: Cross multiply
    250,074.16x = 345,102.34 × 136,896.91
  4. Step 4: Simplify right side
    250,074.16x = 47,243,443,979.77
  5. Step 5: Solve for x
    x = 47,243,443,979.77/250,074.16
  6. Step 6: Final answer
    x = 188,917.74

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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.