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Finding the Fourth Proportional to 378,555.96, 567,134.10 and 191,119.80

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Solution

The fourth proportional to 378,555.96, 567,134.10 and 191,119.80 is: 286,326.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,555.96 : 567,134.10 = 191,119.80 : x
  2. Step 2: Convert to fraction form
    378,555.96/567,134.10 = 191,119.80/x
  3. Step 3: Cross multiply
    378,555.96x = 567,134.10 × 191,119.80
  4. Step 4: Simplify right side
    378,555.96x = 108,390,555,765.18
  5. Step 5: Solve for x
    x = 108,390,555,765.18/378,555.96
  6. Step 6: Final answer
    x = 286,326.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.