Home / 320,968.55-442,931.18-177,725.51

Finding the Fourth Proportional to 320,968.55, 442,931.18 and 177,725.51

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Solution

The fourth proportional to 320,968.55, 442,931.18 and 177,725.51 is: 245,258.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,968.55 : 442,931.18 = 177,725.51 : x
  2. Step 2: Convert to fraction form
    320,968.55/442,931.18 = 177,725.51/x
  3. Step 3: Cross multiply
    320,968.55x = 442,931.18 × 177,725.51
  4. Step 4: Simplify right side
    320,968.55x = 78,720,171,161.47
  5. Step 5: Solve for x
    x = 78,720,171,161.47/320,968.55
  6. Step 6: Final answer
    x = 245,258.21

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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.