Home / 319,284.84-440,581.92-196,758.16

Finding the Fourth Proportional to 319,284.84, 440,581.92 and 196,758.16

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Solution

The fourth proportional to 319,284.84, 440,581.92 and 196,758.16 is: 271,507.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,284.84 : 440,581.92 = 196,758.16 : x
  2. Step 2: Convert to fraction form
    319,284.84/440,581.92 = 196,758.16/x
  3. Step 3: Cross multiply
    319,284.84x = 440,581.92 × 196,758.16
  4. Step 4: Simplify right side
    319,284.84x = 86,688,087,908.47
  5. Step 5: Solve for x
    x = 86,688,087,908.47/319,284.84
  6. Step 6: Final answer
    x = 271,507.06

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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.