Home / 345,983.40-518,975.10-159,359.40

Finding the Fourth Proportional to 345,983.40, 518,975.10 and 159,359.40

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Solution

The fourth proportional to 345,983.40, 518,975.10 and 159,359.40 is: 239,039.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,983.40 : 518,975.10 = 159,359.40 : x
  2. Step 2: Convert to fraction form
    345,983.40/518,975.10 = 159,359.40/x
  3. Step 3: Cross multiply
    345,983.40x = 518,975.10 × 159,359.40
  4. Step 4: Simplify right side
    345,983.40x = 82,703,560,550.94
  5. Step 5: Solve for x
    x = 82,703,560,550.94/345,983.40
  6. Step 6: Final answer
    x = 239,039.10

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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.