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Finding the Fourth Proportional to 309,103.52, 426,497.28 and 181,732.64

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Solution

The fourth proportional to 309,103.52, 426,497.28 and 181,732.64 is: 250,752.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,103.52 : 426,497.28 = 181,732.64 : x
  2. Step 2: Convert to fraction form
    309,103.52/426,497.28 = 181,732.64/x
  3. Step 3: Cross multiply
    309,103.52x = 426,497.28 × 181,732.64
  4. Step 4: Simplify right side
    309,103.52x = 77,508,476,647.22
  5. Step 5: Solve for x
    x = 77,508,476,647.22/309,103.52
  6. Step 6: Final answer
    x = 250,752.49

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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.