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Finding the Fourth Proportional to 262,384.52, 393,634.08 and 84,909.47

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Solution

The fourth proportional to 262,384.52, 393,634.08 and 84,909.47 is: 127,382.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,384.52 : 393,634.08 = 84,909.47 : x
  2. Step 2: Convert to fraction form
    262,384.52/393,634.08 = 84,909.47/x
  3. Step 3: Cross multiply
    262,384.52x = 393,634.08 × 84,909.47
  4. Step 4: Simplify right side
    262,384.52x = 33,423,259,138.57
  5. Step 5: Solve for x
    x = 33,423,259,138.57/262,384.52
  6. Step 6: Final answer
    x = 127,382.74

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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.