Home / 320,984.50-442,953.16-177,741.47

Finding the Fourth Proportional to 320,984.50, 442,953.16 and 177,741.47

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Solution

The fourth proportional to 320,984.50, 442,953.16 and 177,741.47 is: 245,280.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,984.50 : 442,953.16 = 177,741.47 : x
  2. Step 2: Convert to fraction form
    320,984.50/442,953.16 = 177,741.47/x
  3. Step 3: Cross multiply
    320,984.50x = 442,953.16 × 177,741.47
  4. Step 4: Simplify right side
    320,984.50x = 78,731,145,799.55
  5. Step 5: Solve for x
    x = 78,731,145,799.55/320,984.50
  6. Step 6: Final answer
    x = 245,280.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.