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Finding the Fourth Proportional to 250,021.94, 345,030.28 and 136,844.69

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Solution

The fourth proportional to 250,021.94, 345,030.28 and 136,844.69 is: 188,845.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,021.94 : 345,030.28 = 136,844.69 : x
  2. Step 2: Convert to fraction form
    250,021.94/345,030.28 = 136,844.69/x
  3. Step 3: Cross multiply
    250,021.94x = 345,030.28 × 136,844.69
  4. Step 4: Simplify right side
    250,021.94x = 47,215,561,707.21
  5. Step 5: Solve for x
    x = 47,215,561,707.21/250,021.94
  6. Step 6: Final answer
    x = 188,845.67

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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.