Home / 313,621.39-432,766.29-177,628.20

Finding the Fourth Proportional to 313,621.39, 432,766.29 and 177,628.20

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Solution

The fourth proportional to 313,621.39, 432,766.29 and 177,628.20 is: 245,109.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,621.39 : 432,766.29 = 177,628.20 : x
  2. Step 2: Convert to fraction form
    313,621.39/432,766.29 = 177,628.20/x
  3. Step 3: Cross multiply
    313,621.39x = 432,766.29 × 177,628.20
  4. Step 4: Simplify right side
    313,621.39x = 76,871,497,113.38
  5. Step 5: Solve for x
    x = 76,871,497,113.38/313,621.39
  6. Step 6: Final answer
    x = 245,109.23

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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.