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Finding the Fourth Proportional to 293,456.60, 439,674.60 and 135,360.80

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Solution

The fourth proportional to 293,456.60, 439,674.60 and 135,360.80 is: 202,805.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,456.60 : 439,674.60 = 135,360.80 : x
  2. Step 2: Convert to fraction form
    293,456.60/439,674.60 = 135,360.80/x
  3. Step 3: Cross multiply
    293,456.60x = 439,674.60 × 135,360.80
  4. Step 4: Simplify right side
    293,456.60x = 59,514,705,595.68
  5. Step 5: Solve for x
    x = 59,514,705,595.68/293,456.60
  6. Step 6: Final answer
    x = 202,805.82

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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.