Home / 318,530.61-478,091.30-160,869.69

Finding the Fourth Proportional to 318,530.61, 478,091.30 and 160,869.69

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Solution

The fourth proportional to 318,530.61, 478,091.30 and 160,869.69 is: 241,453.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,530.61 : 478,091.30 = 160,869.69 : x
  2. Step 2: Convert to fraction form
    318,530.61/478,091.30 = 160,869.69/x
  3. Step 3: Cross multiply
    318,530.61x = 478,091.30 × 160,869.69
  4. Step 4: Simplify right side
    318,530.61x = 76,910,398,418.35
  5. Step 5: Solve for x
    x = 76,910,398,418.35/318,530.61
  6. Step 6: Final answer
    x = 241,453.71

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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.