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Finding the Fourth Proportional to 240,893.40, 360,945.91 and 145,835.46

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Solution

The fourth proportional to 240,893.40, 360,945.91 and 145,835.46 is: 218,514.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,893.40 : 360,945.91 = 145,835.46 : x
  2. Step 2: Convert to fraction form
    240,893.40/360,945.91 = 145,835.46/x
  3. Step 3: Cross multiply
    240,893.40x = 360,945.91 × 145,835.46
  4. Step 4: Simplify right side
    240,893.40x = 52,638,712,819.97
  5. Step 5: Solve for x
    x = 52,638,712,819.97/240,893.40
  6. Step 6: Final answer
    x = 218,514.55

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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.