Home / 212,623.29-318,935.39-199,632.51

Finding the Fourth Proportional to 212,623.29, 318,935.39 and 199,632.51

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Solution

The fourth proportional to 212,623.29, 318,935.39 and 199,632.51 is: 299,449.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,623.29 : 318,935.39 = 199,632.51 : x
  2. Step 2: Convert to fraction form
    212,623.29/318,935.39 = 199,632.51/x
  3. Step 3: Cross multiply
    212,623.29x = 318,935.39 × 199,632.51
  4. Step 4: Simplify right side
    212,623.29x = 63,669,871,435.37
  5. Step 5: Solve for x
    x = 63,669,871,435.37/212,623.29
  6. Step 6: Final answer
    x = 299,449.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.