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Finding the Fourth Proportional to 320,934.68, 442,903.68 and 177,694.71

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Solution

The fourth proportional to 320,934.68, 442,903.68 and 177,694.71 is: 245,226.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,934.68 : 442,903.68 = 177,694.71 : x
  2. Step 2: Convert to fraction form
    320,934.68/442,903.68 = 177,694.71/x
  3. Step 3: Cross multiply
    320,934.68x = 442,903.68 × 177,694.71
  4. Step 4: Simplify right side
    320,934.68x = 78,701,640,975.53
  5. Step 5: Solve for x
    x = 78,701,640,975.53/320,934.68
  6. Step 6: Final answer
    x = 245,226.36

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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.