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Finding the Fourth Proportional to 355,990.68, 491,265.34 and 192,647.06

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Solution

The fourth proportional to 355,990.68, 491,265.34 and 192,647.06 is: 265,851.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,990.68 : 491,265.34 = 192,647.06 : x
  2. Step 2: Convert to fraction form
    355,990.68/491,265.34 = 192,647.06/x
  3. Step 3: Cross multiply
    355,990.68x = 491,265.34 × 192,647.06
  4. Step 4: Simplify right side
    355,990.68x = 94,640,822,335.20
  5. Step 5: Solve for x
    x = 94,640,822,335.20/355,990.68
  6. Step 6: Final answer
    x = 265,851.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.