Home / 231,379.20-346,838.40-106,502.40

Finding the Fourth Proportional to 231,379.20, 346,838.40 and 106,502.40

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Solution

The fourth proportional to 231,379.20, 346,838.40 and 106,502.40 is: 159,647.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,379.20 : 346,838.40 = 106,502.40 : x
  2. Step 2: Convert to fraction form
    231,379.20/346,838.40 = 106,502.40/x
  3. Step 3: Cross multiply
    231,379.20x = 346,838.40 × 106,502.40
  4. Step 4: Simplify right side
    231,379.20x = 36,939,122,012.16
  5. Step 5: Solve for x
    x = 36,939,122,012.16/231,379.20
  6. Step 6: Final answer
    x = 159,647.55

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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.