Home / 345,958.39-518,934.50-109,301.06

Finding the Fourth Proportional to 345,958.39, 518,934.50 and 109,301.06

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Solution

The fourth proportional to 345,958.39, 518,934.50 and 109,301.06 is: 163,950.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,958.39 : 518,934.50 = 109,301.06 : x
  2. Step 2: Convert to fraction form
    345,958.39/518,934.50 = 109,301.06/x
  3. Step 3: Cross multiply
    345,958.39x = 518,934.50 × 109,301.06
  4. Step 4: Simplify right side
    345,958.39x = 56,720,092,081.28
  5. Step 5: Solve for x
    x = 56,720,092,081.28/345,958.39
  6. Step 6: Final answer
    x = 163,950.62

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1.5x scale

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.