Home / 345,960.71-518,937.97-109,303.38

Finding the Fourth Proportional to 345,960.71, 518,937.97 and 109,303.38

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Solution

The fourth proportional to 345,960.71, 518,937.97 and 109,303.38 is: 163,954.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,960.71 : 518,937.97 = 109,303.38 : x
  2. Step 2: Convert to fraction form
    345,960.71/518,937.97 = 109,303.38/x
  3. Step 3: Cross multiply
    345,960.71x = 518,937.97 × 109,303.38
  4. Step 4: Simplify right side
    345,960.71x = 56,721,674,131.34
  5. Step 5: Solve for x
    x = 56,721,674,131.34/345,960.71
  6. Step 6: Final answer
    x = 163,954.09

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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.