Home / 320,810.75-442,672.49-177,570.45

Finding the Fourth Proportional to 320,810.75, 442,672.49 and 177,570.45

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Solution

The fourth proportional to 320,810.75, 442,672.49 and 177,570.45 is: 245,021.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,810.75 : 442,672.49 = 177,570.45 : x
  2. Step 2: Convert to fraction form
    320,810.75/442,672.49 = 177,570.45/x
  3. Step 3: Cross multiply
    320,810.75x = 442,672.49 × 177,570.45
  4. Step 4: Simplify right side
    320,810.75x = 78,605,550,150.71
  5. Step 5: Solve for x
    x = 78,605,550,150.71/320,810.75
  6. Step 6: Final answer
    x = 245,021.56

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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.