Home / 250,631.70-345,890.10-143,199.42

Finding the Fourth Proportional to 250,631.70, 345,890.10 and 143,199.42

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Solution

The fourth proportional to 250,631.70, 345,890.10 and 143,199.42 is: 197,625.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,631.70 : 345,890.10 = 143,199.42 : x
  2. Step 2: Convert to fraction form
    250,631.70/345,890.10 = 143,199.42/x
  3. Step 3: Cross multiply
    250,631.70x = 345,890.10 × 143,199.42
  4. Step 4: Simplify right side
    250,631.70x = 49,531,261,703.74
  5. Step 5: Solve for x
    x = 49,531,261,703.74/250,631.70
  6. Step 6: Final answer
    x = 197,625.69

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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.