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Finding the Fourth Proportional to 358,668.90, 494,781.48 and 222,783.30

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Solution

The fourth proportional to 358,668.90, 494,781.48 and 222,783.30 is: 307,328.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,668.90 : 494,781.48 = 222,783.30 : x
  2. Step 2: Convert to fraction form
    358,668.90/494,781.48 = 222,783.30/x
  3. Step 3: Cross multiply
    358,668.90x = 494,781.48 × 222,783.30
  4. Step 4: Simplify right side
    358,668.90x = 110,229,050,893.28
  5. Step 5: Solve for x
    x = 110,229,050,893.28/358,668.90
  6. Step 6: Final answer
    x = 307,328.15

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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.