Home / 345,967.04-518,947.43-109,309.70

Finding the Fourth Proportional to 345,967.04, 518,947.43 and 109,309.70

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Solution

The fourth proportional to 345,967.04, 518,947.43 and 109,309.70 is: 163,963.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,967.04 : 518,947.43 = 109,309.70 : x
  2. Step 2: Convert to fraction form
    345,967.04/518,947.43 = 109,309.70/x
  3. Step 3: Cross multiply
    345,967.04x = 518,947.43 × 109,309.70
  4. Step 4: Simplify right side
    345,967.04x = 56,725,984,747.79
  5. Step 5: Solve for x
    x = 56,725,984,747.79/345,967.04
  6. Step 6: Final answer
    x = 163,963.55

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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.