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Finding the Fourth Proportional to 293,556.75, 405,108.32 and 159,420.75

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Solution

The fourth proportional to 293,556.75, 405,108.32 and 159,420.75 is: 220,000.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,556.75 : 405,108.32 = 159,420.75 : x
  2. Step 2: Convert to fraction form
    293,556.75/405,108.32 = 159,420.75/x
  3. Step 3: Cross multiply
    293,556.75x = 405,108.32 × 159,420.75
  4. Step 4: Simplify right side
    293,556.75x = 64,582,671,408.54
  5. Step 5: Solve for x
    x = 64,582,671,408.54/293,556.75
  6. Step 6: Final answer
    x = 220,000.64

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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.