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Finding the Fourth Proportional to 353,675.04, 530,495.60 and 87,434.56

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Solution

The fourth proportional to 353,675.04, 530,495.60 and 87,434.56 is: 131,147.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,675.04 : 530,495.60 = 87,434.56 : x
  2. Step 2: Convert to fraction form
    353,675.04/530,495.60 = 87,434.56/x
  3. Step 3: Cross multiply
    353,675.04x = 530,495.60 × 87,434.56
  4. Step 4: Simplify right side
    353,675.04x = 46,383,649,367.94
  5. Step 5: Solve for x
    x = 46,383,649,367.94/353,675.04
  6. Step 6: Final answer
    x = 131,147.65

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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.