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Finding the Fourth Proportional to 318,717.92, 477,924.39 and 185,636.13

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Solution

The fourth proportional to 318,717.92, 477,924.39 and 185,636.13 is: 278,365.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,717.92 : 477,924.39 = 185,636.13 : x
  2. Step 2: Convert to fraction form
    318,717.92/477,924.39 = 185,636.13/x
  3. Step 3: Cross multiply
    318,717.92x = 477,924.39 × 185,636.13
  4. Step 4: Simplify right side
    318,717.92x = 88,720,034,192.21
  5. Step 5: Solve for x
    x = 88,720,034,192.21/318,717.92
  6. Step 6: Final answer
    x = 278,365.38

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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.