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Finding the Fourth Proportional to 293,011.82, 439,654.45 and 103,615.62

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Solution

The fourth proportional to 293,011.82, 439,654.45 and 103,615.62 is: 155,471.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,011.82 : 439,654.45 = 103,615.62 : x
  2. Step 2: Convert to fraction form
    293,011.82/439,654.45 = 103,615.62/x
  3. Step 3: Cross multiply
    293,011.82x = 439,654.45 × 103,615.62
  4. Step 4: Simplify right side
    293,011.82x = 45,555,068,422.51
  5. Step 5: Solve for x
    x = 45,555,068,422.51/293,011.82
  6. Step 6: Final answer
    x = 155,471.78

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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.