Home / 345,959.90-518,936.75-109,302.57

Finding the Fourth Proportional to 345,959.90, 518,936.75 and 109,302.57

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Solution

The fourth proportional to 345,959.90, 518,936.75 and 109,302.57 is: 163,952.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,959.90 : 518,936.75 = 109,302.57 : x
  2. Step 2: Convert to fraction form
    345,959.90/518,936.75 = 109,302.57/x
  3. Step 3: Cross multiply
    345,959.90x = 518,936.75 × 109,302.57
  4. Step 4: Simplify right side
    345,959.90x = 56,721,119,895.93
  5. Step 5: Solve for x
    x = 56,721,119,895.93/345,959.90
  6. Step 6: Final answer
    x = 163,952.88

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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.