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Finding the Fourth Proportional to 251,412.28, 346,954.88 and 136,697.48

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Solution

The fourth proportional to 251,412.28, 346,954.88 and 136,697.48 is: 188,645.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,412.28 : 346,954.88 = 136,697.48 : x
  2. Step 2: Convert to fraction form
    251,412.28/346,954.88 = 136,697.48/x
  3. Step 3: Cross multiply
    251,412.28x = 346,954.88 × 136,697.48
  4. Step 4: Simplify right side
    251,412.28x = 47,427,857,769.70
  5. Step 5: Solve for x
    x = 47,427,857,769.70/251,412.28
  6. Step 6: Final answer
    x = 188,645.75

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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.