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Finding the Fourth Proportional to 345,102.30, 517,551.30 and 155,453.04

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Solution

The fourth proportional to 345,102.30, 517,551.30 and 155,453.04 is: 233,133.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,102.30 : 517,551.30 = 155,453.04 : x
  2. Step 2: Convert to fraction form
    345,102.30/517,551.30 = 155,453.04/x
  3. Step 3: Cross multiply
    345,102.30x = 517,551.30 × 155,453.04
  4. Step 4: Simplify right side
    345,102.30x = 80,454,922,940.95
  5. Step 5: Solve for x
    x = 80,454,922,940.95/345,102.30
  6. Step 6: Final answer
    x = 233,133.55

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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.