Home / 320,336.10-480,577.05-187,147.80

Finding the Fourth Proportional to 320,336.10, 480,577.05 and 187,147.80

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Solution

The fourth proportional to 320,336.10, 480,577.05 and 187,147.80 is: 280,764.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,336.10 : 480,577.05 = 187,147.80 : x
  2. Step 2: Convert to fraction form
    320,336.10/480,577.05 = 187,147.80/x
  3. Step 3: Cross multiply
    320,336.10x = 480,577.05 × 187,147.80
  4. Step 4: Simplify right side
    320,336.10x = 89,938,937,637.99
  5. Step 5: Solve for x
    x = 89,938,937,637.99/320,336.10
  6. Step 6: Final answer
    x = 280,764.29

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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.