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Finding the Fourth Proportional to 358,667.90, 494,780.10 and 222,782.30

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Solution

The fourth proportional to 358,667.90, 494,780.10 and 222,782.30 is: 307,326.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,667.90 : 494,780.10 = 222,782.30 : x
  2. Step 2: Convert to fraction form
    358,667.90/494,780.10 = 222,782.30/x
  3. Step 3: Cross multiply
    358,667.90x = 494,780.10 × 222,782.30
  4. Step 4: Simplify right side
    358,667.90x = 110,228,248,672.23
  5. Step 5: Solve for x
    x = 110,228,248,672.23/358,667.90
  6. Step 6: Final answer
    x = 307,326.77

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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.