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Finding the Fourth Proportional to 360,990, 541,485 and 98,334

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Solution

The fourth proportional to 360,990, 541,485 and 98,334 is: 147,501

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,990 : 541,485 = 98,334 : x
  2. Step 2: Convert to fraction form
    360,990/541,485 = 98,334/x
  3. Step 3: Cross multiply
    360,990x = 541,485 × 98,334
  4. Step 4: Simplify right side
    360,990x = 53,246,385,990
  5. Step 5: Solve for x
    x = 53,246,385,990/360,990
  6. Step 6: Final answer
    x = 147,501

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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.