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Finding the Fourth Proportional to 250,601.12, 345,826.32 and 143,170.28

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Solution

The fourth proportional to 250,601.12, 345,826.32 and 143,170.28 is: 197,573.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,601.12 : 345,826.32 = 143,170.28 : x
  2. Step 2: Convert to fraction form
    250,601.12/345,826.32 = 143,170.28/x
  3. Step 3: Cross multiply
    250,601.12x = 345,826.32 × 143,170.28
  4. Step 4: Simplify right side
    250,601.12x = 49,512,051,065.77
  5. Step 5: Solve for x
    x = 49,512,051,065.77/250,601.12
  6. Step 6: Final answer
    x = 197,573.14

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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.