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Finding the Fourth Proportional to 293,238.48, 439,893.90 and 103,659.72

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Solution

The fourth proportional to 293,238.48, 439,893.90 and 103,659.72 is: 155,502.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,238.48 : 439,893.90 = 103,659.72 : x
  2. Step 2: Convert to fraction form
    293,238.48/439,893.90 = 103,659.72/x
  3. Step 3: Cross multiply
    293,238.48x = 439,893.90 × 103,659.72
  4. Step 4: Simplify right side
    293,238.48x = 45,599,278,503.71
  5. Step 5: Solve for x
    x = 45,599,278,503.71/293,238.48
  6. Step 6: Final answer
    x = 155,502.37

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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.