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Finding the Fourth Proportional to 250,636.31, 345,878.87 and 135,914.87

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Solution

The fourth proportional to 250,636.31, 345,878.87 and 135,914.87 is: 187,562.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,636.31 : 345,878.87 = 135,914.87 : x
  2. Step 2: Convert to fraction form
    250,636.31/345,878.87 = 135,914.87/x
  3. Step 3: Cross multiply
    250,636.31x = 345,878.87 × 135,914.87
  4. Step 4: Simplify right side
    250,636.31x = 47,010,079,242.83
  5. Step 5: Solve for x
    x = 47,010,079,242.83/250,636.31
  6. Step 6: Final answer
    x = 187,562.93

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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.