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Finding the Fourth Proportional to 210,994.75, 291,308.55 and 188,294.73

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Solution

The fourth proportional to 210,994.75, 291,308.55 and 188,294.73 is: 259,967.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,994.75 : 291,308.55 = 188,294.73 : x
  2. Step 2: Convert to fraction form
    210,994.75/291,308.55 = 188,294.73/x
  3. Step 3: Cross multiply
    210,994.75x = 291,308.55 × 188,294.73
  4. Step 4: Simplify right side
    210,994.75x = 54,851,864,768.94
  5. Step 5: Solve for x
    x = 54,851,864,768.94/210,994.75
  6. Step 6: Final answer
    x = 259,967.91

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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.