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Finding the Fourth Proportional to 345,333, 518,073.60 and 195,645

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Solution

The fourth proportional to 345,333, 518,073.60 and 195,645 is: 293,509.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,333 : 518,073.60 = 195,645 : x
  2. Step 2: Convert to fraction form
    345,333/518,073.60 = 195,645/x
  3. Step 3: Cross multiply
    345,333x = 518,073.60 × 195,645
  4. Step 4: Simplify right side
    345,333x = 101,358,509,472
  5. Step 5: Solve for x
    x = 101,358,509,472/345,333
  6. Step 6: Final answer
    x = 293,509.48

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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.