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Finding the Fourth Proportional to 250,033.40, 345,043.41 and 135,309.51

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Solution

The fourth proportional to 250,033.40, 345,043.41 and 135,309.51 is: 186,725.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,033.40 : 345,043.41 = 135,309.51 : x
  2. Step 2: Convert to fraction form
    250,033.40/345,043.41 = 135,309.51/x
  3. Step 3: Cross multiply
    250,033.40x = 345,043.41 × 135,309.51
  4. Step 4: Simplify right side
    250,033.40x = 46,687,654,228.42
  5. Step 5: Solve for x
    x = 46,687,654,228.42/250,033.40
  6. Step 6: Final answer
    x = 186,725.67

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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.