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Finding the Fourth Proportional to 250,409.68, 345,566.36 and 135,688.56

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Solution

The fourth proportional to 250,409.68, 345,566.36 and 135,688.56 is: 187,250.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,409.68 : 345,566.36 = 135,688.56 : x
  2. Step 2: Convert to fraction form
    250,409.68/345,566.36 = 135,688.56/x
  3. Step 3: Cross multiply
    250,409.68x = 345,566.36 × 135,688.56
  4. Step 4: Simplify right side
    250,409.68x = 46,889,401,772.84
  5. Step 5: Solve for x
    x = 46,889,401,772.84/250,409.68
  6. Step 6: Final answer
    x = 187,250.76

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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.