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Finding the Fourth Proportional to 250,099.28, 345,123.80 and 136,900.08

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Solution

The fourth proportional to 250,099.28, 345,123.80 and 136,900.08 is: 188,914.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,099.28 : 345,123.80 = 136,900.08 : x
  2. Step 2: Convert to fraction form
    250,099.28/345,123.80 = 136,900.08/x
  3. Step 3: Cross multiply
    250,099.28x = 345,123.80 × 136,900.08
  4. Step 4: Simplify right side
    250,099.28x = 47,247,475,829.90
  5. Step 5: Solve for x
    x = 47,247,475,829.90/250,099.28
  6. Step 6: Final answer
    x = 188,914.88

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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.