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Finding the Fourth Proportional to 154,998.72, 230,910.12 and 149,354.64

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Solution

The fourth proportional to 154,998.72, 230,910.12 and 149,354.64 is: 222,501.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,998.72 : 230,910.12 = 149,354.64 : x
  2. Step 2: Convert to fraction form
    154,998.72/230,910.12 = 149,354.64/x
  3. Step 3: Cross multiply
    154,998.72x = 230,910.12 × 149,354.64
  4. Step 4: Simplify right side
    154,998.72x = 34,487,497,844.96
  5. Step 5: Solve for x
    x = 34,487,497,844.96/154,998.72
  6. Step 6: Final answer
    x = 222,501.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.