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Finding the Fourth Proportional to 250,611.21, 345,841.95 and 135,888.72

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Solution

The fourth proportional to 250,611.21, 345,841.95 and 135,888.72 is: 187,525.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,611.21 : 345,841.95 = 135,888.72 : x
  2. Step 2: Convert to fraction form
    250,611.21/345,841.95 = 135,888.72/x
  3. Step 3: Cross multiply
    250,611.21x = 345,841.95 × 135,888.72
  4. Step 4: Simplify right side
    250,611.21x = 46,996,019,907.80
  5. Step 5: Solve for x
    x = 46,996,019,907.80/250,611.21
  6. Step 6: Final answer
    x = 187,525.61

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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.