Home / 345,439.50-517,936.59-145,706.46

Finding the Fourth Proportional to 345,439.50, 517,936.59 and 145,706.46

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Solution

The fourth proportional to 345,439.50, 517,936.59 and 145,706.46 is: 218,465.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,439.50 : 517,936.59 = 145,706.46 : x
  2. Step 2: Convert to fraction form
    345,439.50/517,936.59 = 145,706.46/x
  3. Step 3: Cross multiply
    345,439.50x = 517,936.59 × 145,706.46
  4. Step 4: Simplify right side
    345,439.50x = 75,466,707,033.37
  5. Step 5: Solve for x
    x = 75,466,707,033.37/345,439.50
  6. Step 6: Final answer
    x = 218,465.77

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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.