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Finding the Fourth Proportional to 355,297.86, 490,290.14 and 194,120.82

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Solution

The fourth proportional to 355,297.86, 490,290.14 and 194,120.82 is: 267,875.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,297.86 : 490,290.14 = 194,120.82 : x
  2. Step 2: Convert to fraction form
    355,297.86/490,290.14 = 194,120.82/x
  3. Step 3: Cross multiply
    355,297.86x = 490,290.14 × 194,120.82
  4. Step 4: Simplify right side
    355,297.86x = 95,175,524,014.71
  5. Step 5: Solve for x
    x = 95,175,524,014.71/355,297.86
  6. Step 6: Final answer
    x = 267,875.31

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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.