Home / 355,310.90-532,942.05-115,421.30

Finding the Fourth Proportional to 355,310.90, 532,942.05 and 115,421.30

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Solution

The fourth proportional to 355,310.90, 532,942.05 and 115,421.30 is: 173,124.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,310.90 : 532,942.05 = 115,421.30 : x
  2. Step 2: Convert to fraction form
    355,310.90/532,942.05 = 115,421.30/x
  3. Step 3: Cross multiply
    355,310.90x = 532,942.05 × 115,421.30
  4. Step 4: Simplify right side
    355,310.90x = 61,512,864,235.67
  5. Step 5: Solve for x
    x = 61,512,864,235.67/355,310.90
  6. Step 6: Final answer
    x = 173,124.06

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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.