Home / 281,865.65-388,990.49-167,212.17

Finding the Fourth Proportional to 281,865.65, 388,990.49 and 167,212.17

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Solution

The fourth proportional to 281,865.65, 388,990.49 and 167,212.17 is: 230,762.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,865.65 : 388,990.49 = 167,212.17 : x
  2. Step 2: Convert to fraction form
    281,865.65/388,990.49 = 167,212.17/x
  3. Step 3: Cross multiply
    281,865.65x = 388,990.49 × 167,212.17
  4. Step 4: Simplify right side
    281,865.65x = 65,043,943,106.20
  5. Step 5: Solve for x
    x = 65,043,943,106.20/281,865.65
  6. Step 6: Final answer
    x = 230,762.22

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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.