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Finding the Fourth Proportional to 320,017.74, 479,889.81 and 109,676.94

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Solution

The fourth proportional to 320,017.74, 479,889.81 and 109,676.94 is: 164,468.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,017.74 : 479,889.81 = 109,676.94 : x
  2. Step 2: Convert to fraction form
    320,017.74/479,889.81 = 109,676.94/x
  3. Step 3: Cross multiply
    320,017.74x = 479,889.81 × 109,676.94
  4. Step 4: Simplify right side
    320,017.74x = 52,632,845,897.98
  5. Step 5: Solve for x
    x = 52,632,845,897.98/320,017.74
  6. Step 6: Final answer
    x = 164,468.53

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1.5x scale

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.