Home / 318,650.22-478,047.33-105,417.62

Finding the Fourth Proportional to 318,650.22, 478,047.33 and 105,417.62

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Solution

The fourth proportional to 318,650.22, 478,047.33 and 105,417.62 is: 158,150.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,650.22 : 478,047.33 = 105,417.62 : x
  2. Step 2: Convert to fraction form
    318,650.22/478,047.33 = 105,417.62/x
  3. Step 3: Cross multiply
    318,650.22x = 478,047.33 × 105,417.62
  4. Step 4: Simplify right side
    318,650.22x = 50,394,609,385.72
  5. Step 5: Solve for x
    x = 50,394,609,385.72/318,650.22
  6. Step 6: Final answer
    x = 158,150.24

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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.