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Finding the Fourth Proportional to 491,459.16, 737,188.20 and 154,529.31

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Solution

The fourth proportional to 491,459.16, 737,188.20 and 154,529.31 is: 231,793.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,459.16 : 737,188.20 = 154,529.31 : x
  2. Step 2: Convert to fraction form
    491,459.16/737,188.20 = 154,529.31/x
  3. Step 3: Cross multiply
    491,459.16x = 737,188.20 × 154,529.31
  4. Step 4: Simplify right side
    491,459.16x = 113,917,183,886.14
  5. Step 5: Solve for x
    x = 113,917,183,886.14/491,459.16
  6. Step 6: Final answer
    x = 231,793.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.