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Finding the Fourth Proportional to 345,811.80, 518,717.70 and 96,493.80

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Solution

The fourth proportional to 345,811.80, 518,717.70 and 96,493.80 is: 144,740.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,811.80 : 518,717.70 = 96,493.80 : x
  2. Step 2: Convert to fraction form
    345,811.80/518,717.70 = 96,493.80/x
  3. Step 3: Cross multiply
    345,811.80x = 518,717.70 × 96,493.80
  4. Step 4: Simplify right side
    345,811.80x = 50,053,042,000.26
  5. Step 5: Solve for x
    x = 50,053,042,000.26/345,811.80
  6. Step 6: Final answer
    x = 144,740.70

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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.