Home / 320,909.46-442,884.76-177,669.50

Finding the Fourth Proportional to 320,909.46, 442,884.76 and 177,669.50

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Solution

The fourth proportional to 320,909.46, 442,884.76 and 177,669.50 is: 245,200.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,909.46 : 442,884.76 = 177,669.50 : x
  2. Step 2: Convert to fraction form
    320,909.46/442,884.76 = 177,669.50/x
  3. Step 3: Cross multiply
    320,909.46x = 442,884.76 × 177,669.50
  4. Step 4: Simplify right side
    320,909.46x = 78,687,111,208.22
  5. Step 5: Solve for x
    x = 78,687,111,208.22/320,909.46
  6. Step 6: Final answer
    x = 245,200.35

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1.5x scale

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.