Home / 320,938.93-442,909.55-177,698.95

Finding the Fourth Proportional to 320,938.93, 442,909.55 and 177,698.95

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Solution

The fourth proportional to 320,938.93, 442,909.55 and 177,698.95 is: 245,232.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,938.93 : 442,909.55 = 177,698.95 : x
  2. Step 2: Convert to fraction form
    320,938.93/442,909.55 = 177,698.95/x
  3. Step 3: Cross multiply
    320,938.93x = 442,909.55 × 177,698.95
  4. Step 4: Simplify right side
    320,938.93x = 78,704,561,091.48
  5. Step 5: Solve for x
    x = 78,704,561,091.48/320,938.93
  6. Step 6: Final answer
    x = 245,232.20

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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.