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Finding the Fourth Proportional to 253,620.96, 349,994.40 and 137,333.88

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Solution

The fourth proportional to 253,620.96, 349,994.40 and 137,333.88 is: 189,519.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,620.96 : 349,994.40 = 137,333.88 : x
  2. Step 2: Convert to fraction form
    253,620.96/349,994.40 = 137,333.88/x
  3. Step 3: Cross multiply
    253,620.96x = 349,994.40 × 137,333.88
  4. Step 4: Simplify right side
    253,620.96x = 48,066,088,930.27
  5. Step 5: Solve for x
    x = 48,066,088,930.27/253,620.96
  6. Step 6: Final answer
    x = 189,519.39

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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.