Home / 279,935.12-386,310.60-152,608.08

Finding the Fourth Proportional to 279,935.12, 386,310.60 and 152,608.08

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Solution

The fourth proportional to 279,935.12, 386,310.60 and 152,608.08 is: 210,599.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,935.12 : 386,310.60 = 152,608.08 : x
  2. Step 2: Convert to fraction form
    279,935.12/386,310.60 = 152,608.08/x
  3. Step 3: Cross multiply
    279,935.12x = 386,310.60 × 152,608.08
  4. Step 4: Simplify right side
    279,935.12x = 58,954,118,949.65
  5. Step 5: Solve for x
    x = 58,954,118,949.65/279,935.12
  6. Step 6: Final answer
    x = 210,599.22

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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.