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Finding the Fourth Proportional to 318,354.92, 477,536.22 and 107,988.20

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Solution

The fourth proportional to 318,354.92, 477,536.22 and 107,988.20 is: 161,983.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,354.92 : 477,536.22 = 107,988.20 : x
  2. Step 2: Convert to fraction form
    318,354.92/477,536.22 = 107,988.20/x
  3. Step 3: Cross multiply
    318,354.92x = 477,536.22 × 107,988.20
  4. Step 4: Simplify right side
    318,354.92x = 51,568,276,832.60
  5. Step 5: Solve for x
    x = 51,568,276,832.60/318,354.92
  6. Step 6: Final answer
    x = 161,983.60

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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.