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Finding the Fourth Proportional to 250,015.71, 345,022.59 and 135,294.34

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Solution

The fourth proportional to 250,015.71, 345,022.59 and 135,294.34 is: 186,706.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,015.71 : 345,022.59 = 135,294.34 : x
  2. Step 2: Convert to fraction form
    250,015.71/345,022.59 = 135,294.34/x
  3. Step 3: Cross multiply
    250,015.71x = 345,022.59 × 135,294.34
  4. Step 4: Simplify right side
    250,015.71x = 46,679,601,197.56
  5. Step 5: Solve for x
    x = 46,679,601,197.56/250,015.71
  6. Step 6: Final answer
    x = 186,706.67

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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.