Home / 282,643.24-390,025.38-161,786.92

Finding the Fourth Proportional to 282,643.24, 390,025.38 and 161,786.92

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Solution

The fourth proportional to 282,643.24, 390,025.38 and 161,786.92 is: 223,253.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,643.24 : 390,025.38 = 161,786.92 : x
  2. Step 2: Convert to fraction form
    282,643.24/390,025.38 = 161,786.92/x
  3. Step 3: Cross multiply
    282,643.24x = 390,025.38 × 161,786.92
  4. Step 4: Simplify right side
    282,643.24x = 63,101,004,952.03
  5. Step 5: Solve for x
    x = 63,101,004,952.03/282,643.24
  6. Step 6: Final answer
    x = 223,253.19

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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.