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Finding the Fourth Proportional to 346,668.05, 478,404.31 and 193,712.69

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Solution

The fourth proportional to 346,668.05, 478,404.31 and 193,712.69 is: 267,324.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,668.05 : 478,404.31 = 193,712.69 : x
  2. Step 2: Convert to fraction form
    346,668.05/478,404.31 = 193,712.69/x
  3. Step 3: Cross multiply
    346,668.05x = 478,404.31 × 193,712.69
  4. Step 4: Simplify right side
    346,668.05x = 92,672,985,797.69
  5. Step 5: Solve for x
    x = 92,672,985,797.69/346,668.05
  6. Step 6: Final answer
    x = 267,324.85

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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.