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Finding the Fourth Proportional to 283,157.00, 390,764.50 and 154,096.66

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Solution

The fourth proportional to 283,157.00, 390,764.50 and 154,096.66 is: 212,657.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,157.00 : 390,764.50 = 154,096.66 : x
  2. Step 2: Convert to fraction form
    283,157.00/390,764.50 = 154,096.66/x
  3. Step 3: Cross multiply
    283,157.00x = 390,764.50 × 154,096.66
  4. Step 4: Simplify right side
    283,157.00x = 60,215,505,266.58
  5. Step 5: Solve for x
    x = 60,215,505,266.58/283,157.00
  6. Step 6: Final answer
    x = 212,657.66

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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.