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Finding the Fourth Proportional to 253,416.18, 349,714.46 and 138,694.92

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Solution

The fourth proportional to 253,416.18, 349,714.46 and 138,694.92 is: 191,399.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,416.18 : 349,714.46 = 138,694.92 : x
  2. Step 2: Convert to fraction form
    253,416.18/349,714.46 = 138,694.92/x
  3. Step 3: Cross multiply
    253,416.18x = 349,714.46 × 138,694.92
  4. Step 4: Simplify right side
    253,416.18x = 48,503,619,052.54
  5. Step 5: Solve for x
    x = 48,503,619,052.54/253,416.18
  6. Step 6: Final answer
    x = 191,399.06

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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.