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Finding the Fourth Proportional to 399,065.70, 598,808.73 and 230,704.29

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Solution

The fourth proportional to 399,065.70, 598,808.73 and 230,704.29 is: 346,177.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,065.70 : 598,808.73 = 230,704.29 : x
  2. Step 2: Convert to fraction form
    399,065.70/598,808.73 = 230,704.29/x
  3. Step 3: Cross multiply
    399,065.70x = 598,808.73 × 230,704.29
  4. Step 4: Simplify right side
    399,065.70x = 138,147,742,900.45
  5. Step 5: Solve for x
    x = 138,147,742,900.45/399,065.70
  6. Step 6: Final answer
    x = 346,177.94

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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.